C111123313121111121111331333133313331333133313331333133313331323222231111   >>    C11112331312111112111133133313331333133313331333133313331333132322223111   <<    C111123313121111121111331333133313331333133313331333133313331323222231113   >>      C111123313121111121111331333133313331333133313331333133313331323222231112   >>