#46220: c++解法


a0987909882@gmail.com (成振宇)


#include <iostream>
using namespace std;
 
int main() {
    int m;
    cin >> m;
     
    if (m <= 25) {
        cout << 25 - m << "\n";
    } else {
        cout << 60 - m + 25 << "\n";
    }
     
    return 0;
}