B3311331313231311331322331333131133132333132333133313223313231323221213111
>>
B331133131323131133132233133313113313233313233313331322331323132322121311
<<
B3311331313231311331322331333131133132333132333133313223313231323221213113
>>
B3311331313231311331322331333131133132333132333133313223313231323221213112
>>