#include <iostream>
#include <fstream>
#define ll long long
using namespace std;

ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
ll a,n;
void gcd(ll &x,ll &y,ll a,ll b)
{
    if(b==0){x=1;y=0;}
    else{
        gcd(x,y,b,a%b);
        ll aux=x;
        x=y;
        y=aux-y*(a/b);
    }
}
int main()
{
    ll x,y=0;
    f>>a>>n;
    gcd(x,y,a,n);
    g<<x<<" ";
    return 0;
}