B331322121123313232233132112323331323133313223313331333133311211312112111   >>    B33132212112331323223313211232333132313331322331333133313331121131211211   <<    B331322121123313232233132112323331323133313223313331333133311211312112113   >>      B331322121123313232233132112323331323133313223313331333133311211312112112   >>