#include <fstream>
using namespace std;
ifstream in("kfib.in");
ofstream out("kfib.out");
const int N = 3, R = 666013;
long long aux[N][N], rez[N][N], inm[N][N];
void matrixMultiplication(long long s[][N]){ /// pe cine inmultesc cu inm
    aux[1][1] = aux[1][2] = aux[2][1] = aux[2][2] = 0;
    for(int i=1;i<=2;i++)
        for(int j=1;j<=2;j++)
            for(int k=1;k<=2;k++)
                aux[i][j] = (aux[i][j] + 1LL * s[i][k] * inm[k][j]) % R;
    for(int i=1;i<=2;i++)
        for(int j=1;j<=2;j++)
            s[i][j] = aux[i][j];
}
void fastExpMatrix(int n){
    rez[1][1] = rez[2][2] = 1;
    inm[1][2] = inm[2][1] = inm[2][2] = 1;
    for(;n;n>>=1){
        if(n&1)
            matrixMultiplication(rez);
        matrixMultiplication(inm);
    }
}
int main()
{
    int n;
    in>>n;
    in.close();
    fastExpMatrix(n);
    out<<rez[2][1]<<"\n";
    out.close();
    return 0;
}