<prompt> Kalima dǝwo fuwunzǝ dǝga samno: Jiří Krejza dǝ shima kanuowu slalom Switzerlandbe buroye Czechoslovak lan tuwondǝnama dǝwo badiyaram saa 1970s dǝlan səta badiyaram saa 1980s dǝro kǝla kǝla kǝla kǝ Shiye medal diyau kǝnasartǝna suro ICF Canoe Slalom World Championships lan, kuru shiye kunkunzǝ C-2: 1973 Czechoslovakia ro, silvers indi C-2 team: 1973 Czechoslovakia ro,  <response>: 1977 Switzerland lan kuru bronze Mixed C-2: 1971 Czechoslovakia lan. 