<prompt> Jiří Krejza dǝ shima kanoe Swiss slalomye Czechoslovak lan tuwondǝnama dǝwo badiyaram 1970s lan səta badiyaram 1980s ro sadǝna wo. Shiye medal diyau kǝnasartǝna suro ICF Canoe Slalom World Championships lan, kuru shiye kuru shiye kuru shiye C-2: 1973 Czechoslovakia ro, kuru shiye C-2 team: 1973 Czechoslovakia ro, 1977  <response>: Switzerland lan kuru bronze Mixed C-2: 1971 Czechoslovakia lan. 