func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int pos;     cin >> pos;     long long tmp = 0;     long long n;     for (int i = 1; i < 1000000000; i++) {       tmp += i;       if (tmp > pos) {         n = n - (tmp - i);         break;       }       if (tmp == pos) {         n = i;         break;       }     }     cout << n;     cout << endl;   }   