#include <fstream>

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

int main()
{
    int a,n;
    in>>a>>n;
    out<<expow(a,n-2,n);
    return 0;
}