B3311331313231311331322331333131133132333132333133313223313231311331311211
>>
B331133131323131133132233133313113313233313233313331322331323131133131121
<<
B3311331313231311331322331333131133132333132333133313223313231311331311213
>>
B3311331313231311331322331333131133132333132333133313223313231311331311212
>>