(? 2 + 2) 31 = 5 ? +2
(? 2 + 2) 32 = 2 ? +4
(? 2 + 2) 33 = 4 ? 2 +2 ? +6
(? 2 + 2) 34 = 3 ? 2 +5 ? +3
(? 2 + 2) 35 = 6 ? 2 +2 ? +1
(? 2 + 2) 36 = 3 ?
(? 2 + 2) 37 = 3 ? +4
(? 2 + 2) 38 = 4 ? 2 +3 ? +5
(? 2 + 2) 39 = 2 ? 2 +6 ?
(? 2 + 2)