#include <iostream>
#include <fstream>
using namespace std;
ifstream in("inversmodular.in");
ofstream out("inversmodular.out");
long long putere(int a,int p)
{
    if(p==0)
        return 1;
    if(p%2==0)
        return putere(a,p/2)*putere(a,p/2);
    return putere(a,p/2)*putere(a,p/2)*a;
}
int main()
{
    int a,p;
    in>>a>>p;
    out<<(putere(a,p-2))%p;
    return 0;
}