C111123313121111121111331333133313331323231333133313133313121111331322121121   >>    C11112331312111112111133133313331333132323133313331313331312111133132212112   <<    C111123313121111121111331333133313331323231333133313133313121111331322121123   >>      C111123313121111121111331333133313331323231333133313133313121111331322121122   >>