city_info = [('¼¿ï', 9765), ('ºÎ»ê', 3441), ('ÀÎõ', 2954),
('±¤ÁÖ', 1501), ('´ëÀü', 1531)]
max_pop = city_info[0][1]
min_pop = city_info[0][1]
total_pop = 0
max_city = city_info[0][0]
min_city = city_info[0][0]
for city in city_info:
total_pop += city[1]
if city[1] > max_pop :
max_pop = city[1]
max_city = city[0]
if city[1] < min_pop :
min_pop = city[1]
min_city = city[0]
print('ÃÖ´ëÀα¸: {0}, Àα¸: {1} õ¸í'.format(max_city,max_pop))
print('ÃÖ¼ÒÀα¸: {0}, Àα¸: {1} õ¸í'.format(min_city,min_pop))
print('¸®½ºÆ® µµ½Ã Æò±Õ Àα¸: {0} õ¸í'.format(total_pop / len(city_info)))