C1111233131211111211113313331333133313331333131211111133133313331322311111   >>    C111123313121111121111331333133313331333133313121111113313331333132231111   <<    C1111233131211111211113313331333133313331333131211111133133313331322311113   >>      C1111233131211111211113313331333133313331333131211111133133313331322311112   >>