#include <fstream>

using namespace std;
#define  ll long long
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
ll x,n;
ll putere(ll x,ll y)
{
    if(y==1) return x;
    else if(y==0) return 1;
    else {
        int a=putere(x,y/2);
        if(y%2==0) return (a*a)%n;
        else return (x*(a*a)%n)%n;
    }
}
int main()
{
    f>>x>>n;
    g<<putere(x,n-2)%n;
    return 0;
}