B3311331313231311331322331333132333131323132313231333132313232213231211
>>
B331133131323131133132233133313233313132313231323133313231323221323121
<<
B3311331313231311331322331333132333131323132313231333132313232213231213
>>
B3311331313231311331322331333132333131323132313231333132313232213231212
>>