//        Original expr --> 5 - 3 - 2
// Inline prettyprinted --> (- (- 5 3) 2)
// The value of this expr = 0.0

//        Original expr --> 4 / 2 / 2
// Inline prettyprinted --> (/ (/ 4 2) 2)
// The value of this expr = 1.0

//        Original expr --> 4 * 3 * 2 + 1
// Inline prettyprinted --> (+ (* (* 4 3) 2) 1)
// The value of this expr = 25.0

//        Original expr --> 2 * 3 + 4 + 5 * 6
// Inline prettyprinted --> (+ (+ (* 2 3) 4) (* 5 6))
// The value of this expr = 40.0

//        Original expr --> 2 + 3 + 4 + 5 + 6
// Inline prettyprinted --> (+ (+ (+ (+ 2 3) 4) 5) 6)
// The value of this expr = 20.0

//        Original expr --> 2 / 1 * 2
// Inline prettyprinted --> (* (/ 2 1) 2)
// The value of this expr = 4.0
