func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, ys, ans;   int main() {     cin >> n;     ys = 0;     ans = 0;     for (int i = n; i > 0; i /= 8) {       ys = i % 8;       if (ys == 1) ans++;     }     cout << ans << endl;     return 0;   }   