1-2x<3 (x+1)/2<=2
    m^4-8m^2+4m+3>0
    (-m^4)+(4*m^2)+4*m-15>0
    (-m^4)+(12*m^2)-15>0
    x<3(200-x)
    18x+22(200-x)<3420
    (1-5x)/2>=(3x+1)/3-1
    5x+6>2(x-3)
    (x-1)/7+1/3<(2*x+5)/3-7/2*x
    -x^2+2x+2<0
    -4+x-X^2<0
    [2*(4*x-3)]/3<[5*(5*x+12)/6
    x^2-6x+9<0
    1-(x-1)/2>(x+2)/3-x
    -7*（x-3）<2*(4+2*x)
    x^2+2x-3<0
    x2+2x-3<0
    x3+2x-3<0
    4x^4+8x^3-5x^2+9<0
    -4+e-e2<0

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