B331322121123313232233132112323331323133313223313331333133313232211231   >>    B33132212112331323223313211232333132313331322331333133313331323221123   <<    B331322121123313232233132112323331323133313223313331333133313232211233   >>      B331322121123313232233132112323331323133313223313331333133313232211232   >>