math class
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3 defs 89 3 defs 73 6 defs 63 3 defs 58 6 defs 58 2 defs 54 3 defs 56 3 defs 60 3 defs 62 6 defs 56 3 defs 63 4 defs 55 6 defs 52 6 defs 51 7 defs 51 3 defs 52 5 defs 51 3 defs 50 6 defs 48 6 defs 46 3 defs 54 2 defs 60 3 defs 47 6 defs 58 5 defs 50 3 defs 50 7 defs 56 3 defs 51 3 defs 43 3 defs 49