<prompt> Ladislav Benhák dǝ kam Czechoslovakye slalom canoeyedǝye karǝngǝ saa 1970s be-a badiyaram 1980s be-a ro letǝgǝna. Shiye medal indi suro C-2 team eventbe dәn suwudәna suro ICF Canoe Slalom World Championships lan kuru jauro saa 1977 lan  <response>: kuru arinza suro saa 1975 lan. 