func_code_string: #include <bits/stdc++.h>   using namespace std;   long long p[10], n, res;   int main() {     std::ios::sync_with_stdio(0);     cin.tie(0);     cin >> n;     p[1] = 2;     p[2] = 3;     p[3] = 5;     p[4] = 7;     res = 0;     for (int a = 1; a <= 4; a++) res += n / p[a];     for (int a = 1; a <= 4; a++)       for (int b = a + 1; b <= 4; b++) res -= n / (p[a] * p[b]);     for (int a = 1; a <= 4; a++)       for (int b = a + 1; b <= 4; b++)         for (int c = b + 1; c <= 4; c++) res += n / (p[a] * p[b] * p[c]);     for (int a = 1; a <= 4; a++)       for (int b = a + 1; b <= 4; b++)         for (int c = b + 1; c <= 4; c++)           for (int d = c + 1; d <= 4; d++) res -= n / (p[a] * p[b] * p[c] * p[d]);     res = n - res;     cout << res <<   n ;     return 0;   }   