# -*- coding: utf-8 -*-
"""
Created on Fri Feb 17 10:08:53 2017

@author: tim.latham
"""

# Define a procedure, total_enrollment,
# that takes as an input a list of elements,
# where each element is a list containing
# three elements: a university name,
# the total number of students enrolled,
# and the annual tuition fees.

# The procedure should return two numbers,
# not a string, 
# giving the total number of students
# enrolled at all of the universities
# in the list, and the total tuition fees
# (which is the sum of the number
# of students enrolled times the
# tuition fees for each university).

udacious_univs = [['Udacity',90000,0]]

usa_univs = [ ['California Institute of Technology',2175,37704],
              ['Harvard',19627,39849],
              ['Massachusetts Institute of Technology',10566,40732],
              ['Princeton',7802,37000],
              ['Rice',5879,35551],
              ['Stanford',19535,40569],
              ['Yale',11701,40500]  ]

def total_enrollment(univs):
    tuition, enrollment, count = 0, 0, 0
    while count < len(univs):
        tuition = tuition + univs[count][1]
        enrollment = enrollment + (univs[count][1] * univs[count][2])
        #print tuition, enrollment, count        
        count += 1
    return tuition, enrollment


print total_enrollment(udacious_univs)
#>>> (90000,0)

# The L is automatically added by Python to indicate a long
# number. If you are trying the question in an outside 
# interpreter you might not see it.

print total_enrollment(usa_univs)
#>>> (77285,3058581079)
    
