func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long n, k, ans;     cin >> n >> k;     if (n % 2 == 0) {       if (k <= n / 2) {         ans = 2 * k - 1;       } else {         ans = 2 * k - n;       }     } else {       if (k <= (n / 2) + 1) {         ans = 2 * k - 1;       } else {         ans = 2 * k - n - 1;       }     }     cout << ans;     return 0;   }   