#include <iostream>
using namespace std;
void f(char* s,int n) { s[-n] = '!' ; }
const int N=10;
static char s[N];
static char a[N];
int main ()
{
int i;
for (i=0; i<N; i++)
a[i]='0'+i;
for (i=0; i<N; i++)
cout<<a[i];
cout<<'\n';
f(s,N);
for (i=0; i<N; i++)
cout<<a[i];
cout<<'\n';
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKdm9pZCBmKGNoYXIqIHMsaW50IG4pIHsgc1stbl0gPSAnIScgOyB9Cgpjb25zdCBpbnQgTj0xMDsKc3RhdGljIGNoYXIgc1tOXTsKc3RhdGljIGNoYXIgYVtOXTsKCmludCBtYWluICgpCnsKICAgIGludCBpOyAgCiAgICBmb3IgKGk9MDsgaTxOOyBpKyspCiAgICAgICAgYVtpXT0nMCcraTsKCiAgICBmb3IgKGk9MDsgaTxOOyBpKyspCiAgICAgICAgY291dDw8YVtpXTsgCiAgICBjb3V0PDwnXG4nOwoKICAgIGYocyxOKTsKCiAgICBmb3IgKGk9MDsgaTxOOyBpKyspCiAgICAgICAgY291dDw8YVtpXTsgCgogICAgY291dDw8J1xuJzsKfQ==