B331322121123313232233132112323331323133313223313331333133313233313113312111   >>    B33132212112331323223313211232333132313331322331333133313331323331311331211   <<    B331322121123313232233132112323331323133313223313331333133313233313113312113   >>      B331322121123313232233132112323331323133313223313331333133313233313113312112   >>