This Output box will not respond to letters or symbols. Click 1 to Input value in Input 1 box. Click 2 to Input value in Input 2 box. Press right arrow key to change operation. Press space key to see the result. Press delete to delete values in Input 1 and Input 2 box. -------------------------------------------------------------------------------------------- Please love this project. Please favorite this project. I always accept F4F.
Thanks to my friend @multi-craft for the idea.