B33113313132313113313223313331311331333132311331333131133131133112121
>>
B3311331313231311331322331333131133133313231133133313113313113311212
<<
B33113313132313113313223313331311331333132311331333131133131133112123
>>
B33113313132313113313223313331311331333132311331333131133131133112122
>>