B3311331313231311331322331333131133133313111333133313231323131133132322121231
>>
B331133131323131133132233133313113313331311133313331323132313113313232212123
<<
B3311331313231311331322331333131133133313111333133313231323131133132322121233
>>
B3311331313231311331322331333131133133313111333133313231323131133132322121232
>>