#include <fstream>

using namespace std;
ifstream in ("inversmodular.in");
ofstream out ("inversmodular.out");
long long expow(long long b,long long e,long long mod)
{
    long long ans(1);
    for(int bit=0;(1<<bit)<=e;bit++)
    {
        if(e&(1<<bit))
            ans=ans*b%mod;
        b=b*b%mod;
    }
    return ans;
}
int main()
{
    int a,n;
    in>>a>>n;
    out<<expow(a,n-2,n);
    return 0;
}