#include <fstream>

using namespace std;
int n, p, i, im;
int main()
{
    ifstream fin("inversmodular.in");
    ofstream fout("inversmodular.out");
    fin>>n>>p;
    im=1;
    for(i=1;i<=p-2;i++)
        im*=(n%p)%p;
    fout<<im%p;
    return 0;
}