cuit'' fashion.  That is, when evaluating "OR" if the left
      operand evaluates to true then evaluation of the "OR" returns
      true and the right operand is not evaluated.  Similarly, when
      evaluating "AND" if the left operand evaluates to false then
      evaluation of the "AND" returns false and the right operand is not
      evaluated.

    <h3>Sample Obr Programs</h3>

    The following is an Obr program to compute the greatest common
    divisor of two integers.  The initial values of the pa