math
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3 defs 26 7 defs 27 3 defs 25 4 defs 22 6 defs 31 6 defs 28 6 defs 24 3 defs 26 4 defs 20 5 defs 18 6 defs 20 6 defs 31 6 defs 24 5 defs 18 6 defs 20 5 defs 21 5 defs 23 6 defs 21 6 defs 21 6 defs 24 6 defs 19 7 defs 23 3 defs 18 2 defs 21 6 defs 27 7 defs 28 7 defs 27 6 defs 16 5 defs 28 6 defs 21