B3311331313231311331322331333131133132313131133133313232233132313231311212121
>>
B331133131323131133132233133313113313231313113313331323223313231323131121212
<<
B3311331313231311331322331333131133132313131133133313232233132313231311212123
>>
B3311331313231311331322331333131133132313131133133313232233132313231311212122
>>