Three sample programs for the interpreter of Assignment #5:

let a = 10
in let b = 8
   in if equal?(a, +(b,2)) then 999 else 888


let a = 10
in let b = -(a,2)
   in if equal?(a,b) then 999
      else if greater?(a,b) then 777
           else if less?(a,b) then 666
                else 0  % this case should never happen


let x = 9    % you can change these vals, but the larger one should
in let y = 3 % always wind up at the left of the final number
             % and the smaller one at the right
   in let min = if less?(x,y) then x else y
      in let max = if greater?(x,y) then x else y
         in +(*(max,1000),min) % output will be best if smaller is
                               % no more than two digits