using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp3
{
    class Program
    {
        static void Main()
        {
            int hour = int.Parse(Console.ReadLine());
            int min = int.Parse(Console.ReadLine());
            int flightDuration = int.Parse(Console.ReadLine());

            int extraHours = min + flightDuration;
            int durationHours = extraHours / 60;
            int extraMinutes = extraHours % 60;

            int arrivalHour = durationHours + hour;
            int arrivalMin = extraMinutes;
            if (arrivalHour >= 24)
            {
                arrivalHour = arrivalHour - 24;
            }
            Console.WriteLine($"{arrivalHour}h {arrivalMin}m");
        }
    }
}