(? 2 + 2) 67 = 5 ? +6
(? 2 + 2) 68 = 6 ? 2 +5 ?
(? 2 + 2) 69 = 6 ? 2 +6 ? +2
(? 2 + 2) 70 = ? 2 span> +5
(? 2 + 2) 71 = 6 ? 2 +6 ? +3
(? 2 + 2) 72 = 2 ? 2
(? 2 + 2) 73 = 2 ? 2 +5 ?
(? 2 + 2) 74 = 2 ? 2 +3 ? +2
(? 2 + 2) 75 = 4 ? 2 + ? +1
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