6.2

li = ['meo' ,'bo' ,'ga', 'cho', 'chim', 'lon']
print(li[::2])# giai them
print(li[1::2])# giai them
s = zip(li[::2],li[1::2])# giai them
for pair in s:# giai them
    print(pair)# giai them
print([i for i in zip(li[::2], li[1::2])])# list conrihention