C1111133313331323223313331333133313331323131313121111331323131133132223321111   >>    C111113331333132322331333133313331333132313131312111133132313113313222332111   <<    C1111133313331323223313331333133313331323131313121111331323131133132223321113   >>      C1111133313331323223313331333133313331323131313121111331323131133132223321112   >>