C1111133313331323223313331333133313331333131211113313331211113313223122311   >>    C111113331333132322331333133313331333133313121111331333121111331322312231   <<    C1111133313331323223313331333133313331333131211113313331211113313223122313   >>      C1111133313331323223313331333133313331333131211113313331211113313223122312   >>