;; This program read in 3 numbers, outputs 1 if the product of
;; the first two equals the third, and outputs -1 otherwise.
;;
;; Date Written: 2008/02/13
;; Author: SS

  read 0 ; first input number
  read 1 ; second input number
  read 2 ; third input number

  mul 3, 0, 1
  seq 4, 3, 2
  li  5, 9
  jeqz 4, 5
  write 4
  halt

  li 4, -1
  write 4
  halt