'''
ma_liste1 = ["a","b","c","d","e"]
for element in ma_liste1:
	longueur_ma_liste= -1
	print(element)'''
'''
ma_liste1=["a","b","c","d","e"]
longueur_ma_liste1 =len(ma_liste1)
for i in range (longueur_de_ma_liste1):
	print(ma_liste1[i])
'''
'''
ma_liste2=[10,14,2,7,1,9,21,3]
longueur_ma_liste2= len(ma_liste2)
for i in range (longueur_ma_liste2):
	if ma_liste2[i]>=9:
		print(ma_liste2[i])
'''

L = ["toto","tata","titi","tutu"]
longueur = len(L)
for i in range (longueur):
	print(L[i],i)

print ("________________________________________________________________")

a = 0
while a<=(longueur-1):
	print(L[a],a)
	a=a+1


print ("________________________________________________________________")

b=0
for nombre in L:
	print(nombre, b)
	b=b+1