B33113313132313113313223313331323133313223313231333133313113313331333222213121
>>
B3311331313231311331322331333132313331322331323133313331311331333133322221312
<<
B33113313132313113313223313331323133313223313231333133313113313331333222213123
>>
B33113313132313113313223313331323133313223313231333133313113313331333222213122
>>