#!/usr/bin/python

phonebook = {
    "John" : 938477566,
    "Jack" : 938377264,
    "Jill" : 947662781
}

# write your code here
phonebook["Jake"] = 938273443
#del phonebook["Jill"]
phonebook.pop("Jill")

# testing code
if "Jake" in phonebook:
    print "Jake is listed in the phonebook."
if "Jill" not in phonebook:
    print "Jill is not listed in the phonebook."

print "done"
