Problem Statement

Takahashi is standing on a two-dimensional plane, facing north. Find the minimum positive integer $K$ such that Takahashi will be at the starting position again after he does the following action $K$ times:

• Go one meter in the direction he is facing. Then, turn $X$ degrees counter-clockwise.

Constraints

• $1 \\leq X \\leq 179$
• $X$ is an integer.

Input

Input is given from Standard Input in the following format:

$X$

Output

Print the number of times Takahashi will do the action before he is at the starting position again.

Sample Input 1

90

Sample Output 1

4

Takahashi's path is a square.

Sample Input 2

1

Sample Output 2

360