C1111233131211111211113313331333133313232321333133313331322321111   >>    C111123313121111121111331333133313331323232133313331333132232111   <<    C1111233131211111211113313331333133313232321333133313331322321113   >>      C1111233131211111211113313331333133313232321333133313331322321112   >>