I need a keypad for my accer computer. My q,a,and caplock got burnt by a ciggare

Throw yourself on the mercy of your dealer or Acer (oh, how they'll laugh) but a new keyboard shouldn't cost the earth.

You realise of course that when PCs first came out the instructions always warned against smoking in case smoke particles destroyed floppy discs (or even hard drive platters). Fat chance, really, as many of the earliest adopters were journalists and other writers !!