B33113313132313113313223313331323133313223313231333131133131333132313232222131
>>
B3311331313231311331322331333132313331322331323133313113313133313231323222213
<<
B33113313132313113313223313331323133313223313231333131133131333132313232222133
>>
B33113313132313113313223313331323133313223313231333131133131333132313232222132
>>