C1111133313331323223313331333133313331333131211113313331323231311331   >>    C111113331333132322331333133313331333133313121111331333132323131133   <<    C1111133313331323223313331333133313331333131211113313331323231311333   >>      C1111133313331323223313331333133313331333131211113313331323231311332   >>