# your code goes here#!/usr/bin/env python3
class Obj():
def __init__(self, word):
self.word = word
def __iter__(self):
for l in self.word:
yield l
obj = Obj('sergey')
it = iter(obj)
print(next(it))
print(next(it))
print(next(it))
print(next(it))
IyB5b3VyIGNvZGUgZ29lcyBoZXJlIyEvdXNyL2Jpbi9lbnYgcHl0aG9uMwoKY2xhc3MgT2JqKCk6CiAgZGVmIF9faW5pdF9fKHNlbGYsIHdvcmQpOgogICAgc2VsZi53b3JkID0gd29yZAoKICBkZWYgX19pdGVyX18oc2VsZik6CiAgICBmb3IgbCBpbiBzZWxmLndvcmQ6CiAgICAgIHlpZWxkIGwKCm9iaiA9IE9iaignc2VyZ2V5JykKaXQgPSBpdGVyKG9iaikKCnByaW50KG5leHQoaXQpKQpwcmludChuZXh0KGl0KSkKcHJpbnQobmV4dChpdCkpCnByaW50KG5leHQoaXQpKQ==