using System;
using System.Linq;

namespace _296
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            for (int i = 1; i < x[0]; i++)
            {
                x[2] += x[3];
                if (x[2] >= 60)
                {
                    x[1] += x[2] / 60;
                    x[2] %= 60;
                }
                if (x[1] >= 24)
                {
                    x[1] %= 24;
                }
            }
            Console.WriteLine(x[1]); Console.WriteLine(x[2]);
        }
    }
}