func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<int> v;   void solve(int n) {     int m = 1;     while (n > 0) {       if (n & 1) v.push_back(m);       n >>= 1;       m++;     }     reverse(v.begin(), v.end());   }   int main() {     ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);     int n;     cin >> n;     solve(n);     for (auto it : v) {       cout << it <<    ;     }     cout <<   n ;     return 0;   }   