CREATE TABLE table_77603 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine \\u2020" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT, "Free Practice driver ( s ) " TEXT)

What are the rounds for the B tyres and Ferrari 053 engine +?
SELECT "Rounds" FROM table_77603 WHERE "Tyre" = 'b' AND "Engine \u2020" = 'ferrari 053'
SELECT "Rounds" FROM "table_77603" WHERE "Engine \u2020" = 'ferrari 053' AND "Tyre" = 'b'