def empiler(p:list,v):
    p.append(v)

def depiler(p:list):
    v = p.pop()
    return v

def estVide(p:list)->bool:
    return len(p)==0

maPile = []
empiler(maPile,1)
empiler(maPile,2)
empiler(maPile,3)
print(maPile)
valeur=depiler(maPile)
print("valeur = ",valeur, "mapile =", maPile)