C1111233131211111211113313331333133313331333133313331333133313223132322311   >>    C111123313121111121111331333133313331333133313331333133313331322313232231   <<    C1111233131211111211113313331333133313331333133313331333133313223132322313   >>      C1111233131211111211113313331333133313331333133313331333133313223132322312   >>