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#include <iostream>
using namespace std;
int main() {
        ll i,j;
        ll va = 1;
        ll sum = 0;
        ll prime[1000] = {0};
        for(i = 2;i <= 500;i++) {
            if(prime[i] == 0) 
                for(j = 2*i;j <= 500;j += i)
                    prime[j] = 1;
        }  
        ll val[600] = {0};
        val[1] = 0;
        val[2] = 1;
        ll co = 0;
        for(i = 3;i <= 500;i++) {
            if(prime[i] == 0) {
                co++;
            }
            ll t1 = modPow(2, co);
            val[i] = t1 + val[i - 1];
            val[i] %= MOD;
        //  cout << i << " " << val[i] << "\n";
        }
        ll n;
        S(n);
        cout << val[n] << "\n";
    }

prog.cpp: In function ‘int main()’:
prog.cpp:4:9: error: ‘ll’ was not declared in this scope
         ll i,j;
         ^~
prog.cpp:5:11: error: expected ‘;’ before ‘va’
         ll va = 1;
           ^~~
           ;
prog.cpp:6:11: error: expected ‘;’ before ‘sum’
         ll sum = 0;
           ^~~~
           ;
prog.cpp:7:11: error: expected ‘;’ before ‘prime’
         ll prime[1000] = {0};
           ^~~~~~
           ;
prog.cpp:8:13: error: ‘i’ was not declared in this scope
         for(i = 2;i <= 500;i++) {
             ^
prog.cpp:9:16: error: ‘prime’ was not declared in this scope
             if(prime[i] == 0)
                ^~~~~
prog.cpp:9:16: note: suggested alternative: ‘stime’
             if(prime[i] == 0)
                ^~~~~
                stime
prog.cpp:10:21: error: ‘j’ was not declared in this scope
                 for(j = 2*i;j <= 500;j += i)
                     ^
prog.cpp:13:11: error: expected ‘;’ before ‘val’
         ll val[600] = {0};
           ^~~~
           ;
prog.cpp:14:9: error: ‘val’ was not declared in this scope
         val[1] = 0;
         ^~~
prog.cpp:16:11: error: expected ‘;’ before ‘co’
         ll co = 0;
           ^~~
           ;
prog.cpp:17:13: error: ‘i’ was not declared in this scope
         for(i = 3;i <= 500;i++) {
             ^
prog.cpp:18:16: error: ‘prime’ was not declared in this scope
             if(prime[i] == 0) {
                ^~~~~
prog.cpp:18:16: note: suggested alternative: ‘stime’
             if(prime[i] == 0) {
                ^~~~~
                stime
prog.cpp:19:17: error: ‘co’ was not declared in this scope
                 co++;
                 ^~
prog.cpp:21:15: error: expected ‘;’ before ‘t1’
             ll t1 = modPow(2, co);
               ^~~
               ;
prog.cpp:22:22: error: ‘t1’ was not declared in this scope
             val[i] = t1 + val[i - 1];
                      ^~
prog.cpp:22:22: note: suggested alternative: ‘tm’
             val[i] = t1 + val[i - 1];
                      ^~
                      tm
prog.cpp:23:23: error: ‘MOD’ was not declared in this scope
             val[i] %= MOD;
                       ^~~
prog.cpp:26:11: error: expected ‘;’ before ‘n’
         ll n;
           ^~
           ;
prog.cpp:27:11: error: ‘n’ was not declared in this scope
         S(n);
           ^
prog.cpp:27:9: error: ‘S’ was not declared in this scope
         S(n);
         ^

Standard output is empty