B33132212112331323223313211232333132313331322331333133313231323132233132212121
>>
B3313221211233132322331321123233313231333132233133313331323132313223313221212
<<
B33132212112331323223313211232333132313331322331333133313231323132233132212123
>>
B33132212112331323223313211232333132313331322331333133313231323132233132212122
>>