C1111133313331323223313331333133313113313222112111133131133132212312331   >>    C111113331333132322331333133313331311331322211211113313113313221231233   <<    C1111133313331323223313331333133313113313222112111133131133132212312333   >>      C1111133313331323223313331333133313113313222112111133131133132212312332   >>