# L-6 MCS 260 Mon 10 Sep 2007 : mileage table as nested dictionary
#
#  We use a dictionary of dictionaries to encode the distance in miles
#  between four cities.  If the user does not make any typing errors when
#  entering the city names, the distance between the two cities is shown.
#
distance = {
  'Chicago' : { 'Los Angeles' : 2047 , 'Miami' : 1237, 'New York' : 807 },  \
  'Los Angeles' : { 'Chicago' : 2047 , 'Miami' : 2780, 'New York' : 2787 }, \
  'Miami' : { 'Chicago' : 1237 , 'Los Angeles' : 2780, 'New York' : 1346 }, \
  'New York' : { 'Chicago' : 807 , 'Los Angeles' : 2787, 'Miami' : 1346 } \
}
city1 = raw_input('Give first city : ')
city2 = raw_input('Give second city : ')
print city1 , '-', city2 , ':' , distance[city1][city2] , 'miles'