Console.WriteLine("Please enter your favourite number.")
number1 = Console.ReadLine()
Console.WriteLine("Please enter your another favourite number.")
number2 = Console.ReadLine()
Console.WriteLine("Please enter the operation(+,-,*,/) you want for your numbers.")
operation = Console.ReadLine()
answer = number1 + number2
Console.WriteLine("The sum of your favourite numbers are " & answer)
Elseif operation = "-" then
answer = number1 - number2
Console.WriteLine("The difference of your favourite numbers are " & answer)
Elseif operation = "*" then
answer = number1 * number2
Console.WriteLine("The multiples of your favourite numbers are " & answer)
Elseif operation = "/" then
answer = number1 / number2
Console.WriteLine("The divide of your favourite numbers are " & answer)
Console.WriteLine("Please type a correct symbol and try again.")