using System;

public class Program

{

    public static void Main()

    {

        int a = 1;

        int b = 2;

        int c = 3;

         int[] numbers = { a, b, c };

        for (int i = 0; i < numbers.Length; i++)

        {

            for (int j = i + 1; j < numbers.Length; j++)

            {

                for (int k = j + 1; k < numbers.Length; k++)

                {

                    Console.WriteLine($ "{numbers[i]} {numbers[j]} {numbers[k]}");

                }

            }

        }

    }

}