import std;

auto input()
{
    return readln().chomp();
}

alias sread = () => readln.chomp();
alias aryread(T = long) = () => readln.split.to!(T[]);

void main()
{
    long x;
    scan(x);
    long k = 1;
    while ((x * k) % 360 != 0)
    {
        k++;

    }
    writeln(k);

}

void scan(L...)(ref L A)
{
    auto l = readln.split;
    foreach (i, T; L)
    {
        A[i] = l[i].to!T;
    }
}
