C111112111133131121133133313331333133313331322121111133323223311   >>    C11111211113313112113313331333133313331333132212111113332322331   <<    C111112111133131121133133313331333133313331322121111133323223313   >>      C111112111133131121133133313331333133313331322121111133323223312   >>