B331133131323131133132233133313233313331313133313331123313231313232311
>>
B33113313132313113313223313331323331333131313331333112331323131323231
<<
B331133131323131133132233133313233313331313133313331123313231313232313
>>
B331133131323131133132233133313233313331313133313331123313231313232312
>>