C1111133313331323223313331333133313331323323133112111133133321233133313121211   >>    C111113331333132322331333133313331333132332313311211113313332123313331312121   <<    C1111133313331323223313331333133313331323323133112111133133321233133313121213   >>      C1111133313331323223313331333133313331323323133112111133133321233133313121212   >>