func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int b, x;     double a, c;     cin >> a >> b >> c;     a = ceil(a * (c / 100));     x = a;     x -= b;     if (x < 1) x = 0;     cout << x << endl;     return 0;   }   