func_code_string: #include <bits/stdc++.h>   using namespace std;   bool prime(int x) {     if (x % 2 == 0) return 0;     for (size_t i = 3; i * i <= x; i += 2) {       if (x % i == 0) return 0;     }     return 1;   }   void solve() {     int n, x = 3;     cin >> n;     while (n) {       if (prime(x)) {         cout << x <<    ;         n--;       }       x += 2;     }   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     solve();   }   