Problem:
Score : 200 points

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

Solution in Pascal (FPC 3.0.4) (judge verdict: Accepted)

var N:Longint;
function gcd(a,b:Longint):Longint;
begin
if b=0 then gcd:=a else gcd:=gcd(b,a mod b);
end;
begin
read(N);
writeln(360 div gcd(360,N));
end.