#include <bits/stdc++.h>   using namespace std;   long long nt[105];   string s;   vector<long long> V;   void ts() {     nt[0] = 0;     nt[1] = 0;     for (long long i = 2; i <= 100; i++) {       nt[i] = 1;     }     for (long long i = 2; i <= 100; i++) {       if (nt[i] == 1) {         for (long long j = i * i; j <= 100; j += i) {           nt[j] = 0;         }         V.push_back(i);       }     }   }   signed main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     V.push_back(4);     V.push_back(9);     V.push_back(25);     V.push_back(49);     ts();     long long i = 0;     long long dem = 0;     while (i < 20) {       cout << V[i] << endl;       cin >> s;       if (s ==  yes ) dem++;       if (dem == 2) {         cout <<  composite ;         return 0;       }       i++;     }     cout <<  prime ;     return 0;   }   