#include <fstream>
using namespace std;

ifstream is("inversmodular.in");
ofstream os("inversmodular.out");

int a, n;

int Pow(int x, int y);

int main()
{
    is >> a >> n;
    os << Pow(a, n - 2);
    is.close();
    os.close();
    return 0;
}

int Pow(int x, int y)
{
    if ( y == 1 )
        return x;
    int r = Pow(x, y / 2) % n;
    r = ( 1LL * r * r ) % n;
    if ( y & 1 )
        r = ( 1LL * r * x ) % n;
    return r;
}