using System;

public class Program

{

    public static void Main(string[] args)

    {

        int firstNumber=0,lastNumber,numberOfElements=0,secondNumber=0,nextNumber;

        Console.WriteLine("Enter the lower limit");

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

        Console.WriteLine("Enter the upper limit");

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

        numberOfElements= lastNumber-firstNumber;

        if(numberOfElements<2)

        {

            Console.WriteLine(" Please enter the number in  more than two range");

        }

        else

        {

            secondNu

            Console.Write( firstNumber+" "+secondNumber+" ");

        for(int i=2; i<numberOfElements;i++)

        {

            nextNumber= firstNumber+lastNumber;

            Console.Write("{0}",nextNumber);

            firstNumber=nextNumber;

            nextNumber=nextNumber+1;

        }

        }

    }

}