B33113313132313113313223313331323133313223313231333133313121333131312321
>>
B3311331313231311331322331333132313331322331323133313331312133313131232
<<
B33113313132313113313223313331323133313223313231333133313121333131312323
>>
B33113313132313113313223313331323133313223313231333133313121333131312322
>>