#nested list

mixed_up = ['apple', 3, 'oranges', 27,
            [1,2, ['alpha', 'beta']]]

beatles = [['John', 1940],
           ['Paul', 1942],
           ['George', 1943],
           ['Ringo', 1940]]

print beatles
print beatles[3]
print beatles[3][0]


# name capital population (milion)

countries = [['China','Beijing',1350],
             ['India','Delhi',1210],
             ['Romania','Bucharest',21],
             ['United States','Washington',307]]

#quiz_001
print countries[1][1]

#quiz_002
print countries[0][2] / countries[2][2] * 1.
