#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2009 Doug Hellmann All rights reserved.
     #
     """
     """
     #end_pymotw_header
     
     import decimal
     
     a = decimal.Decimal('5.1')
     b = decimal.Decimal('3.14')
     c = 4
     d = 3.14
     
     print 'a     =', a
     print 'b     =', b
     print 'c     =', c
     print 'd     =', d
     print
     
     print 'a + b =', a + b
     print 'a - b =', a - b
     print 'a * b =', a * b
     print 'a / b =', a / b
     print
     
     print 'a + c =', a + c
     print 'a - c =', a - c
     print 'a * c =', a * c
     print 'a / c =', a / c
     print
     
     print 'a + d =',
     try:
         print a + d
     except TypeError, e:
         print e