#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");
long long a,n;
long long ridicare(long long baza,long long exp){
    long long rez=1;
    while(exp!=0){
        if(exp%2==0){
            baza=(baza*baza)%n;
            exp/=2;
        }
        else{
            rez=(rez*baza)%n;
            exp--;
        }
    }
    return rez;
}
int main()
{
    fin>>a>>n;
    fout<<ridicare(a,n-2)%n;
    return 0;
}