 Complete the following phrase:  Hahn also won five medals in the mens doubles event at the FIL World Luge Championships with two golds 1975, 1977, two silvers 1973, 1979, and one bronze 1978. He also won seven medals in the mens doubles event at the FIL European Luge Championships with four golds 1973, 1975, 1978, 1980 and three silvers 1974, 1977, 