#include<fstream>
using namespace std;
ifstream f("kfib.in");
ofstream g("kfib.out");
int k,i,a[10000001];
int main()
{
    f>>k;
    a[1]=a[2]=1;
    for(i=3;i<=k;++i)
    {
        a[i]=(a[i-1]+a[i-2])%666013;
    }
    g<<a[k]<<'\n';
    return 0;
}