#include <iostream>
#include <fstream>
using namespace std;
#define ll long long
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
ll MOD,a;
ll putere(int a,int nr)
{
    if(nr==0)
        return 1;
    ll c=putere(a,nr/2);
    c=(c*c)%MOD;
    if(nr%2==0)
        return c;
    return (c*a)%MOD;
}
ll getphi(ll nr)
{
    ll cur=nr;
    for(int i=2; i*i<=nr; i++)
    {
        if(nr%i==0)
        {
            while(nr%i==0)
                nr/=i;
            cur=cur/i*(i-1);
        }
    }
    if(nr!=1)
        return cur/nr*(nr-1);
    return cur;
}
int main()
{
    f>>a>>MOD;
    ll p=getphi(MOD)-1;
    g<<putere(a,p);
    return 0;
}