C111123313121111121111331333133313331333131322113121111331121131212131
>>
C11112331312111112111133133313331333133313132211312111133112113121213
<<
C111123313121111121111331333133313331333131322113121111331121131212133
>>
C111123313121111121111331333133313331333131322113121111331121131212132
>>