B33113313132313113313223313331323132313331313232233131133132313231211
>>
B3311331313231311331322331333132313231333131323223313113313231323121
<<
B33113313132313113313223313331323132313331313232233131133132313231213
>>
B33113313132313113313223313331323132313331313232233131133132313231212
>>