 Complete the following phrase:  Charles Dussuet is a retired Swiss slalom canoeist who competed from the late 1940s to the early 1960s. He won nine medals at the ICF Canoe Slalom World Championships with three golds C-1: 1951, 1953; C-2: 1953, three silvers C-1 team: 1953; C-2 team: 1953, 