F(xin)ڵλã > Ϣ > Ԕ(x)(ni)
ҪҺwFFЧҪNlģҺwF쇊F_(d)^Чlׂ(g)
1ϵy(tng)l
Ia(chn)ƷУÓˮ؇UҺwUˮٟtpw併؇C(j)ÓSƷr(ji)(bo)r(ji)