using System;

using System.Linq;

public class Program

{

    public static bool AnyIntersection(string[] a, string[] b) {

        return a.Intersect(b).Any();

    }

    public static void Main()

    {

        var a = new string[] { "a", "b" };

        var b = new string[] { "b", "c" };

        Console.WriteLine(AnyIntersection(a, b));

    }

}