Repair guides, disassembly, and troubleshooting information for the Hyundai Accent GLS, first released in 2001. The fourth generation, designated by the RB model code, was sold in North America from 2012 to 2017 and offered as either a four-door sedan or five-door hatchback.
With more info than you have given i would venture to guess that the fuse is blown if neither is working but if one is working and one isnt then most likely one of the plastic bushings in the wiper control arms is worn or broken and the arm has fallen off.