Develop one screen with Three Input fields along with button "Perform Operation"

1. Input1: Should take Integer Input from user
2. Input2 : Should take Integer Input from user
3. Operator : Should take String (Text) input from user.

Upon clicking on the Perform Action button, perform the arithmetic operation based on Operator provided.

Use IF-Else widget to develop this solution

Possible Values for Operator:

1. Addition
2. Multiplication
3. Subtraction
4. Division

Show the result in a form of Message