Самолет; Airplane

using System;

namespace tESt
{
    class Program
    {
        static void Main(string[] args)
        {
            var hours = int.Parse(Console.ReadLine());
            var minutes = int.Parse(Console.ReadLine());
            var flightTime = int.Parse(Console.ReadLine());

            var hoursToMinutes = hours * 60;
            var totalMinutes = hoursToMinutes + minutes;

            var timeOfLanding = totalMinutes + flightTime;

            var landingHours = timeOfLanding / 60;
            var landingMinutes = timeOfLanding % 60;

            if (landingHours > 24)
            {
             landingHours =  landingHours % 24;

            Console.WriteLine($"{landingHours}h {landingMinutes}m");
            }
            else
            {
                Console.WriteLine($"{landingHours}h {landingMinutes}m");
            }
        }
    }
}