<prompt> Translate the following text to SwahiliThroughout 1997, 1998, and 1999, GAO worked closely with the Congress on Y2K issues-including this subcommittee.  <response>: Katika miaka ya 1997 na 1999, GAO ilifanya kazi kwa karibu na Bunge juu ya masuala ya Y2K - ikiwa ni pamoja na kamati hii ndogo. 