I늽X܇góm,늽XÓm,СͲm,ΙCm,偠tm,m,̿՚O(sh),m
l(f) O(sh)
+
ַӱʡ^h(hun)I(y)_l(f)^(q) 棺-- Ia(chn)Ʒ늽X܇góm,늽XÓm,СͲm,ΙCm,偠tm,m,̿՚O(sh),m