C312312111111331312111133133313331333133322331323133313112133313112331323232321   >>    C31231211111133131211113313331333133313332233132313331311213331311233132323232   <<    C312312111111331312111133133313331333133322331323133313112133313112331323232323   >>      C312312111111331312111133133313331333133322331323133313112133313112331323232322   >>