func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n = 16;     int k;     int a[n];     cin >> k;     for (int i = 0; i < n; i++) {       a[0] = 15;       a[1] = 14;       a[2] = 12;       a[3] = 13;       a[4] = 8;       a[5] = 9;       a[6] = 10;       a[7] = 11;       a[8] = 0;       a[9] = 1;       a[10] = 2;       a[11] = 3;       a[12] = 4;       a[13] = 5;       a[14] = 6;       a[15] = 7;       cout << a[k];       return 0;     }   }   