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    [(250-20×2)+(500-50×2)]×2+11.9×8=
    (5000-50×2)/200+1=
    [(5000-125)+12×16×2]×3+[(2199-300-125)+12×16×2]×3=
    [(5000+125+300-35×2)+15×18]×2+[(2199+125-35×2)+15×18×2]×3=
    [(2199-125-300)+12×12×2]×4=
    [(250-20×2)+(500-20×2)]×2+11.9×8=
    [(2199-50×2)/200+1]=
    [(2199+125-35×2)+15×16×2]×3=
    [(2199+125-35×2)+15×18×2]×2=
    [(250-20×2)+(450-20×2)]×2+11.9×8=
    (900-125-125-50×2)/200+1=
    [(900-125-125)+12×12×2]×4=
    [(900+125+125-35×2)+12×18×2]×2=
    [(900+125+125-35×2)+15×16×2]×2=
    (6700+125+150-35×2+12×12)×4=
    [(250-20×2)+(600-20×2)]×2+11.9×12=
    (6700-125-150-50×2)/150+1=
    [(6700+125+150-35×2)+12×18×2]×4=
    [(6700+125+150-35×2)+15×20×2]×2=
    (4000-35×2+15×12)×4=

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