def boxVolume( length = 1, width = 1, height = 1 ):
return length * width * height
print "The default box volume is:", boxVolume()
print "\nThe volume of a box with length 10,"
print "width 1 and height 1 is:", boxVolume( 10 )
print "\nThe volume of a box with length 10,"
print "width 5 and height 1 is:", boxVolume( 10, 5 )
print "\nThe volume of a box with length 10,"
print "width 5 and height 2 is:", boxVolume( 10, 5, 2 )