'''
Given the dictionary swimmers, add an additional key-value pair to the dictionary with "Phelps"
as the key and the integer 23 as the value. Do not rewrite the entire dictionary.
'''
swimmers = {'Manuel':4, 'Lochte':12, 'Adrian':7, 'Ledecky':5, 'Dirado':4}
swimmers['Phelps'] = 23
print(swimmers)
# {'Manuel': 4, 'Lochte': 12, 'Adrian': 7, 'Ledecky': 5, 'Dirado': 4, 'Phelps': 23}
