比赛时间

#include<iostream>
using namespace std;
int main()
{
    int a, b, c;
    cin >> a >> b >> c;
    if(a < 11){
        printf("-1");
        return 0;
    }
    if(a == 11 && b < 11)
    {
        printf("-1");
        return 0;
    }
    if(a == 11 && b == 11 && c < 11)
    {
        printf("-1");
        return 0;
    }
    int sum = (a - 11) * 60 * 24 + (b - 11) * 60 +  c - 11;
    cout << sum<<endl;
    
}