#include <iostream>
#include <cstdio>
using namespace std;

int a,n;

int main()
{
    int nr,put,i;
    freopen("inversmodular.in","r",stdin);
    freopen("inversmodular.out","w",stdout);
    cin>>a>>n;
    nr=a;
    put=n-2;
    int sol=1;
    for(i=0;(1<<i)<=put;i++)
    {
        if(i&put) sol=(sol*nr)%n;
        nr=nr*nr % n;
    }
    cout<<sol<<'\n';
    return 0;
}