#include <fstream>
#include <math.h>
using namespace std;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
unsigned long long a,b,nr;
unsigned long i;
int main()
{
    f>>a>>b;
    int ok=1;
    for(int k=2;k<=sqrt(b)&&ok;k++)
        if(b%k==0) ok=0;
    b--;
    if(ok) b--;
    for(nr=1,i=(1<<31);i;i>>=1)
    {
        nr*=nr;
        if(i&b) nr*=a;
    }
    if(ok) g<<nr%(b+2);
    else g<<nr%(b+1);
    return 0;
}