“…The parameter of the evaluation function is x 1 = 4. The left to right procedure results in the generated sequence ((1 + 3), (1 + 2), (2 + 2), (1 + 1)) = (4,3,4,2). The right to left procedure con structs the generated sequence (1, (3 + 1), (2 + 2), (2 + 1 + 1)) = (1,4,4,4).…”