B331133131323131133132233133313231323132333133313121111331333131331132311
>>
B33113313132313113313223313331323132313233313331312111133133313133113231
<<
B331133131323131133132233133313231323132333133313121111331333131331132313
>>
B331133131323131133132233133313231323132333133313121111331333131331132312
>>