using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        string[] animals = {"Cat", "Alligator", "fox", "donkey", "Cat", "alligator"};

        var totalCats = animals.Count(s => s == "Cat");

        Console.WriteLine(totalCats);

        var animalsStartsWithA = animals.Count(s => s.StartsWith("a", StringComparison.CurrentCultureIgnoreCase));

        Console.WriteLine(animalsStartsWithA);

        int[] nums = {1, 2, 3, 4, 3, 55, 23, 2, 5, 6, 2, 2};

        var totalEvenNums = nums.Count(n => n % 2 == 0);

        Console.WriteLine(totalEvenNums);

    }

}