math
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6 defs 26 5 defs 30 6 defs 25 5 defs 30 6 defs 35 6 defs 41 7 defs 31 5 defs 25 5 defs 32 4 defs 31 7 defs 24 6 defs 26 6 defs 27 3 defs 30 5 defs 30 5 defs 29 7 defs 36 6 defs 27 6 defs 39 5 defs 26 2 defs 37 6 defs 29 2 defs 38 7 defs 34 7 defs 28 7 defs 36 5 defs 39 5 defs 27 3 defs 29 3 defs 28