B3311331313231311331322331333131133133313231211331333132313231311331312312231
>>
B331133131323131133132233133313113313331323121133133313231323131133131231223
<<
B3311331313231311331322331333131133133313231211331333132313231311331312312233
>>
B3311331313231311331322331333131133133313231211331333132313231311331312312232
>>