B33132212112331323223313211232333132313331322331333133313331322133313121121
>>
B3313221211233132322331321123233313231333132233133313331333132213331312112
<<
B33132212112331323223313211232333132313331322331333133313331322133313121123
>>
B33132212112331323223313211232333132313331322331333133313331322133313121122
>>