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def first_letter(word):
"""
>>> first_letter('Patrick')
'P'
>>> first_letter('Claire')
'C'
"""
def password(firstname, lastname):
"""
>>> password('Patrick', 'Goethals')
'pgoethal'
>>> password('Claire', 'Bellens')
'cbellens'
"""
if __name__ == '__main__':
import doctest
doctest.testmod()