#include<fstream>
using namespace std;
ifstream f("kfib.in");
ofstream g("kfib.out");
int n,x,y,m,i;
const int R=666013;
int main()
{
   f>>n;
    n=n%(R*2+2);
    x=1;
    y=1;
    for(i=3;i<=n;i++)
    {
        m=(x+y)%R;
        x=y;
        y=m;
    }
    g<<y<<" ";
    return 0;
}