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

namespace grandmothers
{
    class Program
    {
        static void Main(string[] args)
        {
            int countGrandMothers;
            int timeWaitHours;
            int timeWaitMinutes;
            bool isQueue;
            Console.Write("Введите количество старушек в очереди: ");
            countGrandMothers = Convert.ToInt32(Console.ReadLine());
            isQueue = countGrandMothers >= 0;
            countGrandMothers *= Convert.ToInt32(isQueue);
            timeWaitHours = (10 * countGrandMothers) / 60;
            timeWaitMinutes = (10 * countGrandMothers) % 60;
            Console.WriteLine("Вы должны отстоять в очереди " + timeWaitHours + " часа и " + timeWaitMinutes + " минут.");
        }
    }
}