getIntegers:
integers = TextWindow.Read()
spacePosition = Text.GetIndexOf(integers, " ")
If spacePosition = 0 Then
  TextWindow.WriteLine("Please enter two integers.")
  Goto getIntegers
EndIf
A = Text.GetSubText(integers, 1, spacePosition - 1)
B = Text.GetSubTextToEnd(integers, spacePosition + 1)
If A < -1000 Or A > 1000 Or B < -1000 Or B > 1000 Then
  TextWindow.WriteLine("Integers are outside the range -1000 to 1000. Try again.")
  Goto getIntegers
EndIf
TextWindow.WriteLine(A + B)