using System;

public class Program

{

    public static void Main()

    {

        int a, b, c, d ;

        Console.Write("Enter a = ");

        a = Convert.ToInt32(Console.ReadLine());

        Console.Write("Enter b = ");

        b = Convert.ToInt32(Console.ReadLine());

        Console.Write("Enter c = ");

        c = Convert.ToInt32(Console.ReadLine());

        Console.Write("Enter d = ");

        d = Convert.ToInt32(Console.ReadLine());

        if (a == 1 || b == 1 || c == 1 || d == 1) {

          Console.WriteLine("True");

        }

        else {

        Console.WriteLine("False");

        }

    }

}