C111123313121111121111331333133313331333131221111113313231333131121131
>>
C11112331312111112111133133313331333133313122111111331323133313112113
<<
C111123313121111121111331333133313331333131221111113313231333131121133
>>
C111123313121111121111331333133313331333131221111113313231333131121132
>>