'''def special_for(iterable):
    iterator = iter(iterable)
    while True:
        try :
            print(iterator)
            print(next(iterator))
        except StopIteration :
            break

special_for([1,2,3])

op:<list_iterator object at 0x031EB580>
1
<list_iterator object at 0x031EB580>
2
<list_iterator object at 0x031EB580>
3
<list_iterator object at 0x031EB580>
'''

class 
