#!/usr/bin/env python  
#coding: utf-8  

def add(a,b):
    print "ADDING %d + %d" % (a,b)
    return a + b
def subtract(a,b):
    print "SUBTRACTING %d - %d" % (a,b)
    return a - b 
def multiply(a,b):
    print "MULTIPLYING %d * %d" % (a,b)
    return a * b
def divide(a,b):
    print "DIVIDING %d / %d" % (a,b)
    print a / b 


print "Let's do some math with just funcations!"

age = add(30,5)
height = subtract(78,4)
weight = multiply(90,2)
iq = divide(100,2)

#rint "Age: %d, Height: %d, Weight: %d, IQ: %d" % (age, height,weight,iq)
print "Age: %d, Height: %d, Weight: %d, IQ: %d" % (age, height, weight, iq)


print "Here is a puzzle"

what = add(age, subtract(height,multiply(weight,divide(iq,2))))

print "That becomes:", what, "Can you do it by hand?"