using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("How many ants are marching? (Enter a number between 1 and 10)");

        int quantity = Convert.ToInt32(Console.ReadLine());

        if (quantity > 10)

        {

            Console.WriteLine("That's too many!");

        }

        else if (quantity < 1)

        {

            Console.WriteLine("Invalid input.");

        }

        else

        {

            while (quantity < 11)

            {

                Console.WriteLine("The ants go marching {0} by {0}, hurrah, hurrah", quantity);

                Console.WriteLine("The ants go marching {0} by {0}, hurrah, hurrah", quantity);

                Console.WriteLine("The ants go marching {0} by {0}. hurrah, hurrah", quantity);

                switch (quantity)

                {

                    case 1:

                        Console.WriteLine("The little one stops to suck his thumb");

                        break;

                    case 2:

                        Console.WriteLine("The little one stops to tie his shoe");

                        break;

                    case 3:

                        Console.WriteLine("The little one stops to climb a tree");

                        break;

                    case 4:

                        Console.WriteLine("The little one stops to shut the door");

                        break;

                    case 5:

                        Console.WriteLine("The little one stops to take a dive");

                        break;

                    case 6:

                        Console.WriteLine("The little one stops to pick up sticks");

                        break;

                    case 7:

                        Console.WriteLine("The little one stops to pray to heaven");

                        break;

                    case 8:

                        Console.WriteLine("The little one stops to roller skate");

                        break;

                    case 9:

                        Console.WriteLine("The little one stops to check the time");

                        break;

                    case 10:

                        Console.WriteLine("The little one stops to say \"The End!\"");

                        break;

                }

​

                Console.WriteLine(

                    "And they all go marching down, to the ground, to get out of the rain \nBoom, boom, boom...\n");

               quantity++;

            }

        }

    }

}

​