B3313221211233132322331321123233313231333132233133313331333131122233121
>>
B331322121123313232233132112323331323133313223313331333133313112223312
<<
B3313221211233132322331321123233313231333132233133313331333131122233123
>>
B3313221211233132322331321123233313231333132233133313331333131122233122
>>