a = 9 + 9 x [ 9 + 9 x (9 + 9)]
a = 9 + 9 x (9 + 9 x 18)
a = 9 + 9 x (9 + 162)
a = 9 + 9 x 171
a = 9 + 1 531
a = 1 548
b = 358 + 368 : (763: 7- 840 : 8) + 22 x 3
b = 358 + 368 : (109 - 105) + 22 x 3
b = 358 + 368 : 4 + 22 x 3
b = 358 + 92 + 66
b = 450 + 66
b = 516
a > b