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如果x1+m1=x2+m2=x3+m3=Xx_1+m_1=x_2+m_2=x_3+m_3=Xx1+m1=x2+m2=x3+m3=X,那么n=lcm(x1,x2,x3)⋅i+Xn=lcm(x_1,x_2,x_3)\cdot i+Xn=lcm(x1,x2,x3)⋅i+X
