C111123313121111121111331333133313331333131322113121111121133131131
>>
C11112331312111112111133133313331333133313132211312111112113313113
<<
C111123313121111121111331333133313331333131322113121111121133131133
>>
C111123313121111121111331333133313331333131322113121111121133131132
>>