Mathematics
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    10*200+30*10+10*50+30*100+500*10+1000*20+10*2000+20*5000
    14*200+38*10+15*50+34*100+500*14+1000*24+14*2000+24*5000
    14*200+38*10+15*50+35*100+500*14+1000*24+14*2000+24*5000
    sin0.5
    25000/0.2
    14*12/(14*12+12+3*16)
    arctan(0.118)
    arctan(0.0118)
    3.1415926*0.015^2
    3.1415926*0.02^2
    0.1528/1.338338/184.884767
    =[135*0.7/(135*0.7+1500/60)]
    arctan(0.118)
    [135*0.7/(135*0.7+1500/60)]*[2950/65]
    1844.50+851.00+1135.00+780.00+354.50+354.50+21.00+7.00+7.00+1738.00
    7.90×10×5
    22.70×10×5
    1844.50+561.00+851.00+780.00+354.50+354.50+21.00+70.00+70.00+1738.00
    141.85×50
    1844.50+561.00+851.00+780.00+354.50+354.50+2.10+7.00+7.00+1738.00

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