func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     setlocale(LC_ALL,  RUS );     double r;     cin >> r;     for (double x = 1; x <= 9; x++) {       double y = ((r - 1) / (2 * x)) - ((x + 1) / 2);       if (y == (long long)y && y > 0) {         cout << x <<     << fixed << setprecision(0) << y;         return 0;       }     }     cout <<  NO ;     return 0;   }   