Simple Calculator

// PSC:1.0 SimpleCalculator
// Description: Applies +, -, * or / to two numbers using SWITCH

BEGIN SimpleCalculator
  INPUT "First number: " a
  INPUT "Operator (+, -, *, /): " op
  INPUT "Second number: " b
  SWITCH op
    CASE "+": OUTPUT "Result: " a + b
    CASE "-": OUTPUT "Result: " a - b
    CASE "*": OUTPUT "Result: " a * b
    CASE "/": OUTPUT "Result: " a / b
    DEFAULT: OUTPUT "Unknown operator"
  END SWITCH
END