math nightmare
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4 defs 13 3 defs 17 3 defs 19 5 defs 17 3 defs 18 5 defs 20 3 defs 14 3 defs 21 3 defs 20 3 defs 16 3 defs 18 3 defs 13 3 defs 12 2 defs 11 5 defs 16 3 defs 17 3 defs 15 7 defs 19 5 defs 14 6 defs 17 5 defs 18 3 defs 14 3 defs 15 3 defs 14 2 defs 19 4 defs 16 3 defs 13 6 defs 17 5 defs 15 3 defs 15