B33113313132313113313223313331311331333131113331333133313113313221321
>>
B3311331313231311331322331333131133133313111333133313331311331322132
<<
B33113313132313113313223313331311331333131113331333133313113313221323
>>
B33113313132313113313223313331311331333131113331333133313113313221322
>>