B3311331313231311331322331333131133132313131133133313232233132313331311211
>>
B331133131323131133132233133313113313231313113313331323223313231333131121
<<
B3311331313231311331322331333131133132313131133133313232233132313331311213
>>
B3311331313231311331322331333131133132313131133133313232233132313331311212
>>