func_code_string: #include <bits/stdc++.h>   using namespace std;   long long mod = 1000000000 + 7;   int main() {     ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);     int n;     cin >> n;     n -= 10;     if (n >= 1 && n <= 11 && n != 10) {       cout << 4;     } else if (n == 10) {       cout << 15;     } else {       cout << 0;     }     return 0;   }   