#include <bits/stdc++.h>

using namespace std;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
const int N = 100010;
int a,n,putere(int,int),euler(int);
int main()
{
    f>>a>>n;
    g<<putere(a,euler(n)-1);
    return 0;
}

int putere(int b,int e)
{
    if(e==0)
        return 1;
    int r=putere(b,e/2);
    r=1LL*r*r%n;
    if(e%2==1)
        r=1LL*r*b%n;
    return r;
}
int euler(int x)
{
    int r=1;
    if(x%2==0)
    {
        x/=2;
        while(x%2==0)
        {
            x/=2;
            r*=2;
        };
    }
    for(int d=3; d*d<=x; d+=2)
        if(x%d==0)
        {
            x/=d;
            r*=d-1;
            while(x%d==0)
            {
                x/=d;
                r*=d;
            }
        }
    if(x>1)
        r*=x-1;
    return r;
}