B3311331313231311331322331333131133132333132333133313223313231323221212311
>>
B331133131323131133132233133313113313233313233313331322331323132322121231
<<
B3311331313231311331322331333131133132333132333133313223313231323221212313
>>
B3311331313231311331322331333131133132333132333133313223313231323221212312
>>