B3311331313231311331322331333132313132313331323223313231333132322132312121
>>
B331133131323131133132233133313231313231333132322331323133313232213231212
<<
B3311331313231311331322331333132313132313331323223313231333132322132312123
>>
B3311331313231311331322331333132313132313331323223313231333132322132312122
>>