P(gun)҂
I(y)Ļ
I(y)su
MC(gu)
Q
Ӳչʾ
g(sh)
I(y)(w)
˾
ИI(y)
(lin)ϵ҂
Solution
ʩ
˹
ˮ̎ϵy(tng)ȫ
ϵy(tng)ȫ
ˮ̎ϵy(tng)
ĿO(sh)
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