#include <fstream>
using namespace std;

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

int a, MOD;

int POW(int x, int y);

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

int POW(int x, int y)
{
    if ( y == 0 )
        return 1;
    int r = POW(x, y / 2);
    r = ( 1LL * r * r ) % MOD;
    if ( y % 2 == 1 )
        r = ( 1LL * r * x ) % MOD;
    return r;
}