Leo was really bored after finishing all of Project Euler, so he decided to create his own computational mathematics website: Project Feng! Here, he'll be able to enlighten the students of Massey with new computer science problems. For his first problem, Leo decides on something simple, but crucial:

The year has changed from to . Since the current year is often used in math contest problems, it's very helpful to know its prime factorization. Leo is a very diligent math student and already knows the prime factorization of . Use his information to write a program to find the prime factorization of , and, to save yourself time in the future, any other year.

#### Input Specification

One line containing the integer , the year to prime factorize.

#### Output Specification

On every line and in increasing order, print a prime factor of .

#### Sample Input

`2015`

#### Sample Output

```
5
13
31
```

## Comments

If there is no possible factorisation, you output nothing.

If , print the following: