using System;

public class Program

{

    public static void Main()

    {

        int[] a1 = new int[] {1, 2, 2, 3, 3, 4, 5, 6, 5, 7, 7, 7, 8, 8, 1};

        int[] a2 = new int[] {1, 2, 2, 3, 3, 4, 5, 6, 5, 7, 7, 7, 8, 8, 5};

        int a1First = a1[0];

        int a1Last = a1[a1.Length-1];

        int a2First = a2[0];

        int a2Last = a2[a2.Length-1];

        Console.WriteLine(a1First.Equals(a2First)||a1Last.Equals(a2Last));

    }

}