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// contest/1042/problem/C
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> myvec;
#define pb(i)       push_back(i)
#define all(x)      (x).begin(), (x).end()
#define sz(a)       (ll)a.size()
 
int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	ll n,soduongg,so0,soam ;
	ll a[n];
	ll ln=-pow(10,9);
	vector<ll> vec+;
	vector<ll> vec-;	
	vector<ll> vec0;
	cin >> a;
	for(ll i=0;i<n;i++){
		cin>>a[i];
		if (a[i]>0)	{
			soduong++;
			vec+.pb(i);
		}
		if (a[i]==0){
			so0++;
			vec0.pb(i);
		}
		if (a[i]<0) {
			soam++;
			ln= max(ln,a[i]);
			vec-.pb(i);
			myvec.pb(a[i]);
		}
	}
	for(ll i=0;i<n;i++)
	if(a[i]==ln)	ll z=i;
	sort (myvec.begin(), myvec.end());
 
	if((soduong==0)&&(soam==0))
		for(int i=1;i<sz(vec0);i++)
			cout <<"1"<<" "<<vec0[i-1]<<" "<<vec0[i]<<endl;
 
	if((soduong==0)&&(soam==1)){
		if(sz(vec0)>1)
		for(int i=1;i<sz(vec0);i++)
			cout <<"1"<<" "<<vec0[i-1]<<" "<<vec0[i]<<endl;
		cout <<"1"<<" "<<vec0[i]<<" "<<vec-[0]<<endl; 
	}
 
	if(soam%2==0){
		if(sz(vec0)>1)
		for(int i=1;i<sz(vec0);i++)
				cout <<"1"<<" "<<vec0[i-1]<<" "<<vec0[i]<<endl;
			cout <<"2"<<" "<<vec0.end()<<endl;
		if(sz(vec+)>1)
		for(int i=1;i<sz(vec+);i++)
				cout <<"1"<<" "<<vec+[i-1]<<" "<<vec+[i]<<endl;
		if((sz(vec-)>0)&&(sz(vec+)>0)
			cout <<<"1"<<" "<<vec+.end()<<" "<<vec-.begin()<<endl;
		if(sz(vec-)>1)
		for(int i=1;i<sz(vec-);i++)
				cout <<"1"<<" "<<vec-[i-1]<<" "<<vec-[i]<<endl;
	}
 
	if(soam%2==1){
		for(ll i=0;i<sz(vec-);i++)
			if(vec-[i]==z){
				vec-.erase(i);
				break;
			}
			soam--;
		if(sz(vec0)>1)
		for(int i=1;i<sz(vec0);i++)
				cout <<"1"<<" "<<vec0[i-1]<<" "<<vec0[i]<<endl;
			cout <<"2"<<" "<<vec0.end()<<endl;
		if(sz(vec+)>1)
		for(int i=1;i<sz(vec+);i++)
				cout <<"1"<<" "<<vec+[i-1]<<" "<<vec+[i]<<endl;
		if((sz(vec-)>0)&&(sz(vec+)>0)
			cout <<<"1"<<" "<<vec+.end()<<" "<<vec-.begin()<<endl;
		if(sz(vec-)>1)
		for(int i=1;i<sz(vec-);i++)
				cout <<"1"<<" "<<vec-[i-1]<<" "<<vec-[i]<<endl;
 
	}
 
	return 0;
}
 

prog.cpp: In function ‘int main()’:
prog.cpp:15:16: error: expected initializer before ‘+’ token
  vector<ll> vec+;
                ^
prog.cpp:16:16: error: expected initializer before ‘-’ token
  vector<ll> vec-;
                ^
prog.cpp:18:6: error: no match for ‘operator>>’ (operand types are ‘std::istream {aka std::basic_istream<char>}’ and ‘ll [n] {aka long long int [n]}’)
  cin >> a;
  ~~~~^~~~
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:168:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(bool& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:168:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid initialization of non-const reference of type ‘bool&’ from an rvalue of type ‘bool’
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:172:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>] <near match>
       operator>>(short& __n);
       ^~~~~~~~
/usr/include/c++/6/istream:172:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘short int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(short int)((ll*)(& a))’ to ‘short int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:175:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(unsigned short& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:175:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘short unsigned int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(short unsigned int)((ll*)(& a))’ to ‘short unsigned int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:179:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>] <near match>
       operator>>(int& __n);
       ^~~~~~~~
/usr/include/c++/6/istream:179:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(int)((ll*)(& a))’ to ‘int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:182:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(unsigned int& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:182:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘unsigned int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(unsigned int)((ll*)(& a))’ to ‘unsigned int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:186:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(long& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:186:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘long int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(long int)((ll*)(& a))’ to ‘long int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:190:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(unsigned long& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:190:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘long unsigned int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(long unsigned int)((ll*)(& a))’ to ‘long unsigned int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:195:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(long long& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:195:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘long long int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(long long int)((ll*)(& a))’ to ‘long long int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:199:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(unsigned long long& __n)
       ^~~~~~~~
/usr/include/c++/6/istream:199:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid conversion from ‘ll* {aka long long int*}’ to ‘long long unsigned int’ [-fpermissive]
  cin >> a;
         ^
prog.cpp:18:9: error: cannot bind rvalue ‘(long long unsigned int)((ll*)(& a))’ to ‘long long unsigned int&’
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:235:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match>
       operator>>(void*& __p)
       ^~~~~~~~
/usr/include/c++/6/istream:235:7: note:   conversion of argument 1 would be ill-formed:
prog.cpp:18:9: error: invalid initialization of non-const reference of type ‘void*&’ from an rvalue of type ‘void*’
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:120:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]
       operator>>(__istream_type& (*__pf)(__istream_type&))
       ^~~~~~~~
/usr/include/c++/6/istream:120:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&) {aka std::basic_istream<char>& (*)(std::basic_istream<char>&)}’
/usr/include/c++/6/istream:124:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]
       operator>>(__ios_type& (*__pf)(__ios_type&))
       ^~~~~~~~
/usr/include/c++/6/istream:124:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&) {aka std::basic_ios<char>& (*)(std::basic_ios<char>&)}’
/usr/include/c++/6/istream:131:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]
       operator>>(ios_base& (*__pf)(ios_base&))
       ^~~~~~~~
/usr/include/c++/6/istream:131:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘std::ios_base& (*)(std::ios_base&)’
/usr/include/c++/6/istream:214:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]
       operator>>(float& __f)
       ^~~~~~~~
/usr/include/c++/6/istream:214:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘float&’
/usr/include/c++/6/istream:218:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]
       operator>>(double& __f)
       ^~~~~~~~
/usr/include/c++/6/istream:218:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘double&’
/usr/include/c++/6/istream:222:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]
       operator>>(long double& __f)
       ^~~~~~~~
/usr/include/c++/6/istream:222:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘long double&’
/usr/include/c++/6/istream:259:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]
       operator>>(__streambuf_type* __sb);
       ^~~~~~~~
/usr/include/c++/6/istream:259:7: note:   no known conversion for argument 1 from ‘ll [n] {aka long long int [n]}’ to ‘std::basic_istream<char>::__streambuf_type* {aka std::basic_streambuf<char>*}’
In file included from /usr/include/c++/6/string:53:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/istream:38,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/bits/basic_string.tcc:1437:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator>>(basic_istream<_CharT, _Traits>& __in,
     ^~~~~~~~
/usr/include/c++/6/bits/basic_string.tcc:1437:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/istream:934:0,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/bits/istream.tcc:955:5: note: candidate: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
     ^~~~~~~~
/usr/include/c++/6/bits/istream.tcc:955:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   deduced conflicting types for parameter ‘_CharT2’ (‘char’ and ‘ll {aka long long int}’)
  cin >> a;
         ^
In file included from /usr/include/c++/6/istream:934:0,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/bits/istream.tcc:923:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
     ^~~~~~~~
/usr/include/c++/6/bits/istream.tcc:923:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘ll [n] {aka long long int [n]}’)
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:756:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)
     operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
     ^~~~~~~~
/usr/include/c++/6/istream:756:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘unsigned char&’
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:761:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)
     operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
     ^~~~~~~~
/usr/include/c++/6/istream:761:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘signed char&’
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:803:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)
     operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
     ^~~~~~~~
/usr/include/c++/6/istream:803:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘unsigned char*’
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:808:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*)
     operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
     ^~~~~~~~
/usr/include/c++/6/istream:808:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘signed char*’
  cin >> a;
         ^
In file included from /usr/include/c++/6/sstream:38:0,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/istream:924:5: note: candidate: template<class _CharT, class _Traits, class _Tp> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&)
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^~~~~~~~
/usr/include/c++/6/istream:924:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   variable-sized array type ‘ll [n] {aka long long int [n]}’ is not a valid template argument
  cin >> a;
         ^
In file included from /usr/include/c++/6/ccomplex:39:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/complex:493:5: note: candidate: template<class _Tp, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::complex<_Tp>&)
     operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
     ^~~~~~~~
/usr/include/c++/6/complex:493:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::complex<_Tp>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:66:0,
                 from prog.cpp:2:
/usr/include/c++/6/bitset:1462:5: note: candidate: template<class _CharT, class _Traits, long unsigned int _Nb> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bitset<_Nb>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
     ^~~~~~~~
/usr/include/c++/6/bitset:1462:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::bitset<_Nb>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:71:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Resetiosflags)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:71:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘std::_Resetiosflags’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:101:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setiosflags)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:101:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘std::_Setiosflags’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:132:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setbase)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:132:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘std::_Setbase’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:170:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setfill<_CharT>)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:170:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::_Setfill<_CharT>’ and ‘ll* {aka long long int*}’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:200:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setprecision)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:200:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘std::_Setprecision’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:230:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setw)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:230:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘std::_Setw’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:264:5: note: candidate: template<class _CharT, class _Traits, class _MoneyT> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_money<_MoneyT>)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:264:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::_Get_money<_MoneyT>’ and ‘ll* {aka long long int*}’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:72:0,
                 from prog.cpp:2:
/usr/include/c++/6/iomanip:418:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_time<_CharT>)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Get_time<_CharT> __f)
     ^~~~~~~~
/usr/include/c++/6/iomanip:418:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::_Get_time<_CharT>’ and ‘ll* {aka long long int*}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95,
                 from prog.cpp:2:
/usr/include/c++/6/bits/valarray_after.h:411:5: note: candidate: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
     ^
/usr/include/c++/6/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   ‘std::istream {aka std::basic_istream<char>}’ is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
  cin >> a;
         ^
In file included from /usr/include/c++/6/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95,
                 from prog.cpp:2:
/usr/include/c++/6/bits/valarray_after.h:411:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)
     _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
     ^
/usr/include/c++/6/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   ‘std::istream {aka std::basic_istream<char>}’ is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
  cin >> a;
         ^
In file included from /usr/include/c++/6/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95,
                 from prog.cpp:2:
/usr/include/c++/6/bits/valarray_after.h:411:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
     ^
/usr/include/c++/6/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95,
                 from prog.cpp:2:
/usr/include/c++/6/bits/valarray_after.h:411:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
     ^
/usr/include/c++/6/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   ‘std::istream {aka std::basic_istream<char>}’ is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
  cin >> a;
         ^
In file included from /usr/include/c++/6/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95,
                 from prog.cpp:2:
/usr/include/c++/6/bits/valarray_after.h:411:5: note: candidate: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
     ^
/usr/include/c++/6/bits/valarray_after.h:411:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95:0,
                 from prog.cpp:2:
/usr/include/c++/6/valarray:1176:1: note: candidate: template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(>>, __shift_right)
 ^
/usr/include/c++/6/valarray:1176:1: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   ‘std::istream {aka std::basic_istream<char>}’ is not derived from ‘const std::valarray<_Tp>’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95:0,
                 from prog.cpp:2:
/usr/include/c++/6/valarray:1176:1: note: candidate: template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const std::valarray<_Tp>&, const _Tp&)
 _DEFINE_BINARY_OPERATOR(>>, __shift_right)
 ^
/usr/include/c++/6/valarray:1176:1: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   ‘std::istream {aka std::basic_istream<char>}’ is not derived from ‘const std::valarray<_Tp>’
  cin >> a;
         ^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95:0,
                 from prog.cpp:2:
/usr/include/c++/6/valarray:1176:1: note: candidate: template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const _Tp&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(>>, __shift_right)
 ^
/usr/include/c++/6/valarray:1176:1: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘const std::valarray<_Tp>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:505:5: note: candidate: template<class _UIntType1, long unsigned int __w1, long unsigned int __n1, long unsigned int __m1, long unsigned int __r1, _UIntType1 __a1, long unsigned int __u1, _UIntType1 __d1, long unsigned int __s1, _UIntType1 __b1, long unsigned int __t1, _UIntType1 __c1, long unsigned int __l1, _UIntType1 __f1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:505:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:898:5: note: candidate: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::uniform_int_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:898:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::uniform_int_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:960:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::uniform_real_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:960:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::uniform_real_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2147:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::cauchy_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2147:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::cauchy_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:49:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.h:3594:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bernoulli_distribution&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.h:3594:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   cannot convert ‘a’ (type ‘ll [n] {aka long long int [n]}’) to type ‘std::bernoulli_distribution&’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1925:5: note: candidate: template<class _RealType1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::normal_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1925:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::normal_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1104:5: note: candidate: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::geometric_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1104:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::geometric_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2469:5: note: candidate: template<class _RealType1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::gamma_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2469:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::gamma_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1754:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::exponential_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1754:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::exponential_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2546:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::weibull_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2546:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::weibull_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2622:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::extreme_value_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2622:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::extreme_value_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:178:5: note: candidate: template<class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::linear_congruential_engine<_UIntType, __a, __c, __m>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:178:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::linear_congruential_engine<_UIntType, __a, __c, __m>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:657:5: note: candidate: template<class _UIntType, long unsigned int __w, long unsigned int __s, long unsigned int __r, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::subtract_with_carry_engine<_UIntType, __w, __s, __r>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:657:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::subtract_with_carry_engine<_UIntType, __w, __s, __r>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:725:5: note: candidate: template<class _RandomNumberEngine, long unsigned int __p, long unsigned int __r, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::discard_block_engine<_RandomNumberEngine, __p, __r>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:725:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::discard_block_engine<_RandomNumberEngine, __p, __r>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:856:5: note: candidate: template<class _RandomNumberEngine, long unsigned int __k, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::shuffle_order_engine<_RandomNumberEngine, __k>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:856:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::shuffle_order_engine<_RandomNumberEngine, __k>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1220:5: note: candidate: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::negative_binomial_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1220:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::negative_binomial_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1425:5: note: candidate: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::poisson_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1425:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::poisson_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1693:5: note: candidate: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::binomial_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1693:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::binomial_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:1988:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::lognormal_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:1988:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::lognormal_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2060:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::chi_squared_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2060:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::chi_squared_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2225:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::fisher_f_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2225:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::fisher_f_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2299:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::student_t_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2299:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::student_t_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2761:5: note: candidate: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::discrete_distribution<_IntType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2761:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::discrete_distribution<_IntType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:2976:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::piecewise_constant_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:2976:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::piecewise_constant_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
In file included from /usr/include/c++/6/random:51:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:108,
                 from prog.cpp:2:
/usr/include/c++/6/bits/random.tcc:3192:5: note: candidate: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::piecewise_linear_distribution<_RealType>&)
     operator>>(std::basic_istream<_CharT, _Traits>& __is,
     ^~~~~~~~
/usr/include/c++/6/bits/random.tcc:3192:5: note:   template argument deduction/substitution failed:
prog.cpp:18:9: note:   mismatched types ‘std::piecewise_linear_distribution<_RealType>’ and ‘ll [n] {aka long long int [n]}’
  cin >> a;
         ^
prog.cpp:22:4: error: ‘soduong’ was not declared in this scope
    soduong++;
    ^~~~~~~
prog.cpp:23:4: error: ‘vec’ was not declared in this scope
    vec+.pb(i);
    ^~~
prog.cpp:23:8: error: expected primary-expression before ‘.’ token
    vec+.pb(i);
        ^
prog.cpp:32:4: error: ‘vec’ was not declared in this scope
    vec-.pb(i);
    ^~~
prog.cpp:32:8: error: expected primary-expression before ‘.’ token
    vec-.pb(i);
        ^
prog.cpp:33:9: error: expected unqualified-id before ‘.’ token
    myvec.pb(a[i]);
         ^
prog.cpp:38:13: error: expected primary-expression before ‘.’ token
  sort (myvec.begin(), myvec.end());
             ^
prog.cpp:38:28: error: expected primary-expression before ‘.’ token
  sort (myvec.begin(), myvec.end());
                            ^
prog.cpp:40:6: error: ‘soduong’ was not declared in this scope
  if((soduong==0)&&(soam==0))
      ^~~~~~~
prog.cpp:44:6: error: ‘soduong’ was not declared in this scope
  if((soduong==0)&&(soam==1)){
      ^~~~~~~
prog.cpp:48:25: error: ‘i’ was not declared in this scope
   cout <<"1"<<" "<<vec0[i]<<" "<<vec-[0]<<endl;
                         ^
prog.cpp:48:34: error: ‘vec’ was not declared in this scope
   cout <<"1"<<" "<<vec0[i]<<" "<<vec-[0]<<endl;
                                  ^~~
prog.cpp:48:39: error: expected identifier before numeric constant
   cout <<"1"<<" "<<vec0[i]<<" "<<vec-[0]<<endl;
                                       ^
prog.cpp: In lambda function:
prog.cpp:48:41: error: expected ‘{’ before ‘<<’ token
   cout <<"1"<<" "<<vec0[i]<<" "<<vec-[0]<<endl;
                                         ^~
prog.cpp: In function ‘int main()’:
prog.cpp:55:19: error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’)
    cout <<"2"<<" "<<vec0.end()<<endl;
    ~~~~~~~~~~~~~~~^~~~~~~~~~~~
In file included from /usr/include/c++/6/istream:39:0,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/ostream:108:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(__ostream_type& (*__pf)(__ostream_type&))
       ^~~~~~~~
/usr/include/c++/6/ostream:108:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&) {aka std::basic_ostream<char>& (*)(std::basic_ostream<char>&)}’
/usr/include/c++/6/ostream:117:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type& (*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]
       operator<<(__ios_type& (*__pf)(__ios_type&))
       ^~~~~~~~
/usr/include/c++/6/ostream:117:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘std::basic_ostream<char>::__ios_type& (*)(std::basic_ostream<char>::__ios_type&) {aka std::basic_ios<char>& (*)(std::basic_ios<char>&)}’
/usr/include/c++/6/ostream:127:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(ios_base& (*__pf) (ios_base&))
       ^~~~~~~~
/usr/include/c++/6/ostream:127:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘std::ios_base& (*)(std::ios_base&)’
/usr/include/c++/6/ostream:166:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(long __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:166:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘long int’
/usr/include/c++/6/ostream:170:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(unsigned long __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:170:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘long unsigned int’
/usr/include/c++/6/ostream:174:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(bool __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:174:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘bool’
In file included from /usr/include/c++/6/ostream:638:0,
                 from /usr/include/c++/6/istream:39,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/bits/ostream.tcc:91:5: note: candidate: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char; _Traits = std::char_traits<char>]
     basic_ostream<_CharT, _Traits>::
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/6/bits/ostream.tcc:91:5: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘short int’
In file included from /usr/include/c++/6/istream:39:0,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/ostream:181:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(unsigned short __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:181:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘short unsigned int’
In file included from /usr/include/c++/6/ostream:638:0,
                 from /usr/include/c++/6/istream:39,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/bits/ostream.tcc:105:5: note: candidate: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char; _Traits = std::char_traits<char>]
     basic_ostream<_CharT, _Traits>::
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/6/bits/ostream.tcc:105:5: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘int’
In file included from /usr/include/c++/6/istream:39:0,
                 from /usr/include/c++/6/sstream:38,
                 from /usr/include/c++/6/complex:45,
                 from /usr/include/c++/6/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
                 from prog.cpp:2:
/usr/include/c++/6/ostream:192:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(unsigned int __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:192:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘unsigned int’
/usr/include/c++/6/ostream:201:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(long long __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:201:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘long long int’
/usr/include/c++/6/ostream:205:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(unsigned long long __n)
       ^~~~~~~~
/usr/include/c++/6/ostream:205:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘long long unsigned int’
/usr/include/c++/6/ostream:220:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(double __f)
       ^~~~~~~~
/usr/include/c++/6/ostream:220:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘double’
/usr/include/c++/6/ostream:224:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(float __f)
       ^~~~~~~~
/usr/include/c++/6/ostream:224:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >}’ to ‘float’
/usr/include/c++/6/ostream:232:7: note: candidate: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(long double __f)
       ^~~~~~~~
/usr/include/c++/6/ostream:232:7: note:   no known conversion for argument 1 from ‘std::vector<long long int>::iterator {aka __gnu_cxx::__normal_iterator<long lon

Standard output is empty