#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("kfib.in");
ofstream fout("kfib.out");
int main()
{
    int n, a, b, c;
    a = b = 1;
    fin >> n;
    if(n <= 2)
        fout << a;
    else
    {
        while(n - 2)
        {
            c = (a + b) % 666013;
            a = b;
            b = c;
            n--;
        }
        fout << c;
    }
    fin.close();
    fout.close();
    return 0;
}