C1111133313331323223313331333133313331333132213331333133313121111113311   >>    C111113331333132322331333133313331333133313221333133313331312111111331   <<    C1111133313331323223313331333133313331333132213331333133313121111113313   >>      C1111133313331323223313331333133313331333132213331333133313121111113312   >>