#include <bits/stdc++.h>

using namespace std;

struct ZuoYeTime {
    //构建函数,带初始值
    ZuoYeTime(int hour = 0, int minute = 0, int second = 0) {
        this->hour = hour;
        this->minute = minute;
        this->second = second;
    }

    int hour;
    int minute;
    int second;
};

int main() {
    int n;
    cin >> n;
    //通过构造函数初始化
    ZuoYeTime sum;

    for (int i = 0; i < n; ++i) {
        int hour, minute, second;
        cin >> hour >> minute >> second;
        sum.hour += hour;
        sum.minute += minute;
        sum.second += second;
    }
    sum.minute += sum.second / 60;
    sum.second = sum.second % 60;

    sum.hour += sum.minute / 60;
    sum.minute = sum.minute % 60;

    cout << sum.hour << "hour " << sum.minute << "minute " << sum.second << "second" << endl;

    return 0;
}