math
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7 defs 87 5 defs 87 3 defs 75 7 defs 86 7 defs 85 7 defs 95 6 defs 89 5 defs 77 6 defs 68 5 defs 66 7 defs 77 3 defs 73 3 defs 73 3 defs 69 5 defs 69 6 defs 63 6 defs 79 7 defs 84 6 defs 69 6 defs 58 4 defs 68 5 defs 69 5 defs 65 6 defs 61 7 defs 68 7 defs 63 6 defs 64 7 defs 64 6 defs 68 5 defs 66