<prompt> Pedzisa mutsara unotevera: Martin Wyss aimbova muSwitzerland aichimbova mucherechedzi wetsoka dzechikepe uyo akakwikwidza muma1970. Akakunda menduru mbiri mumutambo weC-2 wechikwata paICF Canoe Slalom World Championships nesirivha mu  <response>: 1977 nendarira muna 1979. 