#include <fstream>

using namespace std;

ifstream f("kfib.in");
ofstream g("kfib.out");

int k,r,i,a1,a2,m=666013;

int main () {
    f >> k;
    a1=0;a2=1;
    for (i=1;i<=k;i++) {
        r=a2%m;a2=(a1+a2)%m;a1=r%m;
    }
    g << a1 << '\n';
    f.close();g.close();
    return 0;
}