Class Task 42#

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            bool ok = true;
            int[] sum = new int[5];
            for (int i = 0; i < 5; i++)
            {
                sum[i] = int.Parse(Console.ReadLine());
            }
            for (int i = 0; i < 3; i++)
            {
                if (sum[i] != sum[i + 1])
                {
                    ok = false;
                }
            }
            Console.Write(ok);
            Console.ReadLine();
        }
    }
}