#include <iostream>
#include <fstream>
using namespace std;
ifstream in("inversmodular.in");
ofstream out("inversmodular.out");
int a,n;
int rez(int x,int r)
{
    int cur=x,rez=1;
    for(int i=1;i<=r;i=i*2)
    {
        if(i&r)
        {
            rez=(1LL*rez*cur)%n;
        }
        cur=(1LL*cur*cur)%n;
    }
    return rez;
}
int main()
{
    in>>a>>n;
    out<<rez(a,n-2);
    return 0;
}