#include <fstream>
#define ll long long
using namespace std;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
ll n;
ll putere (ll x, ll y)
{
    ll p;
    if(y==0)return 1;
    if(y==1)return x%n;
    p=putere(x,y/2);

    if(y%2==0)return (p*p)%n;
    else return (x*p*p)%n;

}
ll a;
int main()
{
    f>>a>>n;
   // g<<putere(a,n-2)<<'\n';
    g<<putere(a,n-2)%n;
    return 0;
}