C111123313121111121111331333133313331333131233133313233231333121333131   >>    C11112331312111112111133133313331333133313123313331323323133312133313   <<    C111123313121111121111331333133313331333131233133313233231333121333133   >>      C111123313121111121111331333133313331333131233133313233231333121333132   >>