query: What was Helkearo's career like in the 1981-82, 1983-84, and 1993-94 seasons?
answer: Helkearo played in the SM-liiga, where he played two seasons for HIFK, in 1981–82 and 1982–83, one season for HPK, in 1983–84, and a single game for Jokerit in the 1993-94 season.