func_code_string: #include <bits/stdc++.h>   using namespace std;   using nagai = long long;   using ll = long long;   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     int n;     cin >> n;     int c = 0;     int t = 1;     while (t <= n) {       n -= t, ++c, t *= 2;     }     if (n) ++c;     cout << c <<   n ;     return 0;   }   