B331322121123313232233132112323331323133313223313331333133313233313221121211
>>
B33132212112331323223313211232333132313331322331333133313331323331322112121
<<
B331322121123313232233132112323331323133313223313331333133313233313221121213
>>
B331322121123313232233132112323331323133313223313331333133313233313221121212
>>