B33113313132313113313223313331323331323112331323133313331311331313112121
>>
B3311331313231311331322331333132333132311233132313331333131133131311212
<<
B33113313132313113313223313331323331323112331323133313331311331313112123
>>
B33113313132313113313223313331323331323112331323133313331311331313112122
>>