B3313221211233132322331321123233313231333132233133313331323132313232233112111
>>
B331322121123313232233132112323331323133313223313331333132313231323223311211
<<
B3313221211233132322331321123233313231333132233133313331323132313232233112113
>>
B3313221211233132322331321123233313231333132233133313331323132313232233112112
>>