Mathematics
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    13068/1+1/7*1/7
    14^2-16*14+12
    4.2/0.5+3.8*2
    6/7÷3=
    6/7÷3=
    (99+100+101+102+103+104+105+106+107+108+109+110+111+112+113+114+115+116+117+118)/20
    3-1/2
    13068/1+1/7*1/7
    13068/1+1/7*1/7
    152837.3-13089.6÷13089.6
    20%+arctan(2.5*182.09%-0.5)×20%/π
    6-5/6+5
    484×6-5/6+5
    √-1
    e^2
    e
    1/21/2
    1/e1/e
    e1/e
    11.45/2

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