Visual Basic Sum Of 2 (sample code)

Public num1 As Integer
Public num2 As Integer
Public answer As Integer
Sub Main()
    Console.WriteLine("Type a number and press Enter")
    num1 = Console.ReadLine()
    Console.WriteLine("Type another number to add to it and press Enter")
    num2 = Console.ReadLine()
    answer = num1 + num2
    Console.WriteLine("The answer is " & answer)
    Console.ReadLine()
End Sub