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