using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine("First Loop");

        for (int i=10; i < 20; i++)

        {

            if (i == 13) continue;

            Console.WriteLine(i);

        }

​

        Console.WriteLine("Second Loop");

        int j;

        for (j=10; j < 20; j++)

        {

            if (j == 13) break;

            Console.WriteLine("Inside the loop {0}", j);

        }

        Console.WriteLine("Outside the loop {0}", j);

        Console.WriteLine("Third Loop to add numbers");

​

        int sum = 0;

        do

        {   

            Console.Write("Enter a number : ");

            string s = Console.ReadLine();

            int number;

            if (!Int32.TryParse(s, out number)) break;

            sum += number;

        } while (true);

        Console.WriteLine("Sum is {0}", sum);

    }

}