#include <fstream>

using namespace std;

ifstream fin("kfib.in");
ofstream fout("kfib.out");

int a,b,i,n,s;

int main()
{
    fin >> n;
    a=1;
    b=1;
    for (i=3; i<=n; i++)
    {
        s=a+b;
        if (s>=666013)
          s-=666013;
        a=b;
        b=s;
    }
    fout << s;
    fin.close();
    fout.close();
    return 0;
}