B3311331313231311331322331333132313331322331323133313331323333233231322121
>>
B331133131323131133132233133313231333132233132313331333132333323323132212
<<
B3311331313231311331322331333132313331322331323133313331323333233231322123
>>
B3311331313231311331322331333132313331322331323133313331323333233231322122
>>