math
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3 defs 81 6 defs 123 6 defs 136 3 defs 77 6 defs 126 7 defs 92 6 defs 81 6 defs 70 6 defs 138 3 defs 59 5 defs 102 5 defs 178 5 defs 110 6 defs 58 3 defs 104 3 defs 116 3 defs 55 5 defs 62 6 defs 85 3 defs 66 3 defs 108 5 defs 121 6 defs 75 6 defs 88 5 defs 101 6 defs 54 5 defs 69 6 defs 62 5 defs 64 3 defs 64