B3311331313231311331322331333132333131323132313231333131333132313331312121311
>>
B331133131323131133132233133313233313132313231323133313133313231333131212131
<<
B3311331313231311331322331333132333131323132313231333131333132313331312121313
>>
B3311331313231311331322331333132333131323132313231333131333132313331312121312
>>