math
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5 defs 47 3 defs 120 6 defs 53 6 defs 76 3 defs 59 5 defs 74 6 defs 87 3 defs 95 6 defs 73 5 defs 89 3 defs 83 6 defs 71 5 defs 78 5 defs 105 3 defs 93 5 defs 80 7 defs 59 3 defs 53 3 defs 75 3 defs 102 3 defs 85 5 defs 143 3 defs 109 3 defs 82 6 defs 55 5 defs 60 3 defs 103 5 defs 113 7 defs 93 3 defs 57