func_code_string: #include <bits/stdc++.h>   int res[1000008];   using namespace std;   int main() {     bool pr[1000008 + 1];     memset(pr, true, sizeof(pr));     int cnt = 0;     for (int p = 2; p * p <= 1000008; p++) {       if (pr[p] == true) {         for (int j = p * p; j <= 1000008; j += p) pr[j] = false;       }     }     for (int i = 2; i <= 1000008; i++) {       if (pr[i]) {         cnt++;       }       res[i] = cnt;     }     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int t;     cin >> t;     while (t--) {       int n;       cin >> n;       int k = sqrt(n);       int r = res[n] - res[k];       cout << r + 1 <<   n ;     }   }   