B3311331313231311331322331333131133132333132333133313223313231323221313311211
>>
B331133131323131133132233133313113313233313233313331322331323132322131331121
<<
B3311331313231311331322331333131133132333132333133313223313231323221313311213
>>
B3311331313231311331322331333131133132333132333133313223313231323221313311212
>>