642.203+105.784×10.43+241.001×7.87+636.830×（9.5+4.81-2.1-3-2.5-6.2+2.74）+52.507×0.25-498.423×（4.81-4.3+1.73）-146.13×0.24-207.57×12.31-232.63×7.31
    9.5+4.81-2.1-3-2.5-6.2+2.74
    (4.81-4.3)/3×(2×231.7021+341.34)/(231.7021+341.34)
    (231.7021+341.34)/2×（4.81-4.3）
    [19.1×6.2+19.5×（4.81-4.3）]×2.3712+2×12×1.5399
    (4.81-4.3)/3×(2×100.8624+105.05)/(100.8624+105.05)
    (100.8624+105.05)/2×（4.81-4.3）
    [20+17×2.1+18.5×3+18.6×2.5+19.1×6.2+19.5×（4.81-4.3）]×0.4217-2×12×0.6494
    49.211×（9.6-1.38-2.1+0.84）+105.784×（9.6-1.38-2.1-3+1.22）+241.001×（9.6-1.38-2.1-3-2.5+1.16）+43.84×0.24-207.57×（9.6-1.38-2）-232.63×（9.6-1.38-7）
    (1.9-1.38)/3×(2×66.5724+102.152)/(66.5724+102.152)
    (66.5724+[20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.38)]×0.6104-2×19×0.7813)/2×(1.9-1.38)
    [20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.38)]×0.6104-2×19×0.7813
    [20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.44)]×0.6104-2×19×0.7813
    [20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-0.44)]×0.6104-2×19×0.7813
    [20+17×2.1+18.5×3+18.6×5.1+19.1×(6.2-0.35)]×0.6104-2×19×0.7813
    (207.57×16+232.63×11+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (192.76×16.5+362.18×9.5+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (207.57×16+347.41×9.5+498.423×5.93+1380.99×1.89)/(49.211×16.741+105.784×14.123+241.001×11.563+636.830×6.940+496.13×2)
    (62*3.14^2*27.5*11.899^2*9.54^2)/153-1512*217120/(153*9.54^2)
    (62*3.14^2*27.5*11.841^2*9.54^2)/153-1512*217120/(153*9.54^2)

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