using System;

public class DistinctNumbers{

    public static void Main()

    {

        int[] arr= new int[] {45,78,90,66,15};

        Array.Sort(arr);

        int n = arr.Length;

        int check = 0, count = 1;

         for (int i = 1; i <= n; i++) {

            if (count <=3) {

                if (check != arr[n - i]) {

                    Console.Write(arr[n - i] + " ");

                    check = arr[n - i];

                    count++;

                }

            }

            else

                break;

        }

    }

}