<prompt> Translate the following text to SwahiliGAOs work on Y2K began through its research and development program, but the vital importance of this issue has manifested itself in many congressional requests for work that the agency received in fiscal years 1998 and 1999.  <response>: Kazi ya GAO juu ya Y2K ilianza kupitia mpango wake wa utafiti na maendeleo, lakini umuhimu muhimu wa suala hili umeonekana katika maombi mengi ya Bunge kwa kazi ambayo shirika hilo lilipokea katika miaka ya kifedha ya 1998 na 1999. 