C312312111133131212111133133313331333133112113313331333131123313232332323213231   >>    C31231211113313121211113313331333133313311211331333133313112331323233232321323   <<    C312312111133131212111133133313331333133112113313331333131123313232332323213233   >>      C312312111133131212111133133313331333133112113313331333131123313232332323213232   >>