C1111133313331323223313331333133313331323131211113313221231311331   >>    C111113331333132322331333133313331333132313121111331322123131133   <<    C1111133313331323223313331333133313331323131211113313221231311333   >>      C1111133313331323223313331333133313331323131211113313221231311332   >>