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.

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.

Constraints

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

Sample Input 1

90

Sample Output 1

4

Takahashi's path is a square.

Sample Input 2

1

Sample Output 2

360

见题面 Input 部分

见题面 Output 部分