func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   int main() {     cin >> n;     n -= 10;     if (n <= 0)       cout << 0 << endl;     else if (n <= 9)       cout << 4 << endl;     else if (n == 10)       cout << 15 << endl;     else if (n == 11)       cout << 4 << endl;     else       cout << 0 << endl;   }   