func_code_string: #include <bits/stdc++.h>   using namespace std;   signed main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long r;     cin >> r;     if ((r - 1) % 2 == 0 && r > 3)       cout << 1 <<     << (r - 3) / 2;     else       cout <<  NO ;   }   