F(xin)ڵλã(y) > ̘I(y)(j) > Ԕ(x)(ni)
켈SÓNF(xin)(chng)bָ(do)
һ(y): ](mi)
һ(y): C(j)Çˮ-߉ֱ
I(yng)a(chn)ƷУÓˮ؇UҺwUˮٟtpw併؇C(j)ÓSƷr(ji)(bo)r(ji)