B3311331313231311331322331333132333131323132313231333132313231311212121
>>
B331133131323131133132233133313233313132313231323133313231323131121212
<<
B3311331313231311331322331333132333131323132313231333132313231311212123
>>
B3311331313231311331322331333132333131323132313231333132313231311212122
>>