C111123313121111121111331333133313331333131132332313331333133313311232322221
>>
C11112331312111112111133133313331333133313113233231333133313331331123232222
<<
C111123313121111121111331333133313331333131132332313331333133313311232322223
>>
C111123313121111121111331333133313331333131132332313331333133313311232322222
>>