【題目敘述】https://zerojudge.tw/ShowProblem?problemid=d060
#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;
}