C1111233131211111211113313331333133313331333133313331333121111331323323111   >>    C111123313121111121111331333133313331333133313331333133312111133132332311   <<    C1111233131211111211113313331333133313331333133313331333121111331323323113   >>      C1111233131211111211113313331333133313331333133313331333121111331323323112   >>