func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long long int n;     cin >> n;     long long int one = (n / 2) + (n / 3) + (n / 5) + (n / 7),                   two = (n / 6) + (n / 10) + (n / 14) + (n / 15) + (n / 21) +                         (n / 35),                   three = (n / (2 * 3 * 5)) + (n / (3 * 5 * 7)) +                           (n / (2 * 5 * 7)) + (n / (2 * 3 * 7)),                   four = (n / (2 * 3 * 5 * 7));     cout << n - one + two - three + four;     return 0;   }   