C313212111133131211331333133313331311331333131133133313223313132321   >>    C31321211113313121133133313331333131133133313113313331322331313232   <<    C313212111133131211331333133313331311331333131133133313223313132323   >>      C313212111133131211331333133313331311331333131133133313223313132322   >>