B3311331313231311331322331333132313231323132313133313231333132313233232131
>>
B331133131323131133132233133313231323132313231313331323133313231323323213
<<
B3311331313231311331322331333132313231323132313133313231333132313233232133
>>
B3311331313231311331322331333132313231323132313133313231333132313233232132
>>