using System;

public class Program

{

    public static void Main()

    {

        //Mariana Gonzalez

        int N;

        Console.WriteLine("tell me a number for 1-10");

        N = int.Parse(Console.ReadLine());

        switch (N)

        {

            case 1:

                Console.WriteLine("1 x 1 = 1");

                Console.WriteLine("1 x 2 = 2");

                Console.WriteLine("1 x 3 = 3");

                Console.WriteLine("1 x 4 = 4");

                Console.WriteLine("1 x 5 = 5");

                Console.WriteLine("1 x 6 = 6");

                Console.WriteLine("1 x 7 = 7");

                Console.WriteLine("1 x 8 = 8");

                Console.WriteLine("1 x 9 = 9");

                Console.WriteLine("1 x 10 = 10");

                break;

           case 2:

                Console.WriteLine("2 x 1 = 2");

                Console.WriteLine("2 x 2 = 4");

                Console.WriteLine("2 x 3 = 6");

                Console.WriteLine("2 x 4 = 8");

                Console.WriteLine("2 x 5 = 10");

                Console.WriteLine("2 x 6 = 12");

                Console.WriteLine("2 x 7 = 14");

                Console.WriteLine("2 x 8 = 16");

                Console.WriteLine("2 x 9 = 18");

                Console.WriteLine("2 x 10 = 20");

                break;

            case 3:

                Console.WriteLine("3 x 1 = 3");

                Console.WriteLine("3 x 2 = 6");

                Console.WriteLine("3 x 3 = 9");

                Console.WriteLine("3 x 4 = 12");

                Console.WriteLine("3 x 5 = 15");

                Console.WriteLine("3 x 6 = 18");

                Console.WriteLine("3 x 7 = 21");

                Console.WriteLine("3 x 8 = 24");

                Console.WriteLine("3 x 9 = 27");

                Console.WriteLine("3 x 10 = 30");

                break;

            case 4:

                Console.WriteLine("4 x 1 = 4");

                Console.WriteLine("4 x 2 = 8");

                Console.WriteLine("4 x 3 = 12");

                Console.WriteLine("4 x 4 = 16");

                Console.WriteLine("4 x 5 = 20");

                Console.WriteLine("4 x 6 = 24");

                Console.WriteLine("4 x 7 = 28");

                Console.WriteLine("4 x 8 = 32");

                Console.WriteLine("4 x 9 = 36");

                Console.WriteLine("4 x 10 = 40");

                break;

            case 5:

                Console.WriteLine("5 x 1 = 5");

                Console.WriteLine("5 x 2 = 10");

                Console.WriteLine("5 x 3 = 15");

                Console.WriteLine("5 x 4 = 20");

                Console.WriteLine("5 x 5 = 25");

                Console.WriteLine("5 x 6 = 30");

                Console.WriteLine("5 x 7 = 35");

                Console.WriteLine("5 x 8 = 40");

                Console.WriteLine("5 x 9 = 45");

                Console.WriteLine("5 x 10 = 50");

                break;

            case 6:

                Console.WriteLine("6 x 1 = 6");

                Console.WriteLine("6 x 2 = 12");

                Console.WriteLine("6 x 3 = 18");

                Console.WriteLine("6 x 4 = 24");

                Console.WriteLine("6 x 5 = 30");

                Console.WriteLine("6 x 6 = 36");

                Console.WriteLine("6 x 7 = 42");

                Console.WriteLine("6 x 8 = 48");

                Console.WriteLine("6 x 9 = 54");

                Console.WriteLine("6 x 10 = 60");

                break;

            case 7:

                Console.WriteLine("7 x 1 = 7");

                Console.WriteLine("7 x 2 = 14");

                Console.WriteLine("7 x 3 = 21");

                Console.WriteLine("7 x 4 = 28");

                Console.WriteLine("7 x 5 = 35");

                Console.WriteLine("7 x 6 = 42");

                Console.WriteLine("7 x 7 = 49");

                Console.WriteLine("7 x 8 = 56");

                Console.WriteLine("7 x 9 = 63");

                Console.WriteLine("7 x 10 = 70");

                break;

            case 8:

                Console.WriteLine("8 x 1 = 8");

                Console.WriteLine("8 x 2 = 16");

                Console.WriteLine("8 x 3 = 24");

                Console.WriteLine("8 x 4 = 32");

                Console.WriteLine("8 x 5 = 40");

                Console.WriteLine("8 x 6 = 48");

                Console.WriteLine("8 x 7 = 56");

                Console.WriteLine("8 x 8 = 64");

                Console.WriteLine("8 x 9 = 72");

                Console.WriteLine("8 x 10 = 80");

                break;

            case 9:

                Console.WriteLine("9 x 1 = 9");

                Console.WriteLine("9 x 2 = 18");

                Console.WriteLine("9 x 3 = 27");

                Console.WriteLine("9 x 4 = 36");

                Console.WriteLine("9 x 5 = 45");

                Console.WriteLine("9 x 6 = 54");

                Console.WriteLine("9 x 7 = 63");

                Console.WriteLine("9 x 8 = 72");

                Console.WriteLine("9 x 9 = 81");

                Console.WriteLine("9 x 10 = 20");

                break;

            case 10:

                Console.WriteLine("10 x 1 = 10");

                Console.WriteLine("10 x 2 = 20");

                Console.WriteLine("10 x 3 = 30");

                Console.WriteLine("10 x 4 = 40");

                Console.WriteLine("10 x 5 = 50");

                Console.WriteLine("10 x 6 = 60");

                Console.WriteLine("10 x 7 = 70");

                Console.WriteLine("10 x 8 = 80");

                Console.WriteLine("10 x 9 = 90");

                Console.WriteLine("10 x 10 = 100");

                break;

            default:

                Console.Write("the number is out of the range");

                break;

​