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    [(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=
    (4000-50×2)/100+1=
    (4000+300-35×2+15×20×2)×3=
    5750+100-35=
    (5750-400-250-1050×2)/200-1=

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