C111123313121111121111331333133313331333133313331333133312111133132322233111   >>    C11112331312111112111133133313331333133313331333133313331211113313232223311   <<    C111123313121111121111331333133313331333133313331333133312111133132322233113   >>      C111123313121111121111331333133313331333133313331333133312111133132322233112   >>