def ajoute(indice, element, liste):
nbre_elts = len(liste)
L = [0 for i in range(nbre_elts + 1)]
if indice < nbre_elts:
for i in range(indice):
L[i] = liste[i]
L[indice] = element
for i in range(indice + 1, nbre_elts + 1):
L[i] = liste[i-1]
else:
for i in range(nbre_elts):
L[i] = liste[i]
L[nbre_elts] = element
return L