B33113313132313113313223313331323132313233313331311331311331323211232322112121
>>
B3311331313231311331322331333132313231323331333131133131133132321123232211212
<<
B33113313132313113313223313331323132313233313331311331311331323211232322112123
>>
B33113313132313113313223313331323132313233313331311331311331323211232322112122
>>