>>> from competicio import guanyadors

>>> l=[['Joan Joanet', 6, 3, 2, 1], ['Maria Mar', 8, 1, 0, 0], ['Pere', 5, 4, 2, 2]]

>>> guanyadors(l)
[[24, 'Maria Mar'], [10, 'Joan Joanet'], [3, 'Pere']]

>>> l.append(['Silvia C', 5, 5, 1, 0])

>>> guanyadors(l)
[[24, 'Maria Mar'], [13, 'Silvia C'], [10, 'Joan Joanet']]

>>> l.append(['Josep M.', 2, 5, 1, 3])

>>> guanyadors(l)
[[24, 'Maria Mar'], [13, 'Silvia C'], [10, 'Joan Joanet']]