C1111133313331323223313331333133313331333131211113313331211113313311231232311   >>    C111113331333132322331333133313331333133313121111331333121111331331123123231   <<    C1111133313331323223313331333133313331333131211113313331211113313311231232313   >>      C1111133313331323223313331333133313331333131211113313331211113313311231232312   >>