B3311331313231311331322331333132233131133132233133313231333132333132313231311
>>
B331133131323131133132233133313223313113313223313331323133313233313231323131
<<
B3311331313231311331322331333132233131133132233133313231333132333132313231313
>>
B3311331313231311331322331333132233131133132233133313231333132333132313231312
>>