> For the complete documentation index, see [llms.txt](https://thamizhiniyancs.gitbook.io/writeups/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thamizhiniyancs.gitbook.io/writeups/hackerrank/python/closures-and-decorators.md).
# Closures and Decorators
## Standardize Mobile Number Using Decorators
```python
def wrapper(f):
def fun(l):
return f(f'+91 {each[-10:-5]} {each[-5:]}' for each in l)
return fun
@wrapper
def sort_phone(l):
print(*sorted(l), sep='\n')
if __name__ == '__main__':
l = [input() for _ in range(int(input()))]
sort_phone(l)
```
***
## Decorators 2 - Name Directory
```python
def person_lister(f):
def inner(people):
return [f(each) for each in sorted(people, key=lambda x: int(x[2]))]
return inner
@person_lister
def name_format(person):
return ("Mr. " if person[3] == "M" else "Ms. ") + person[0] + " " + person[1]
if __name__ == '__main__':
people = [input().split() for i in range(int(input()))]
print(*name_format(people), sep='\n')
```
