#include <fstream>
#define MOD 666013
using namespace std;

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

long Fibo(unsigned long i );
int n;

int main()
{
	fin >> n;
	Fibo(n);
	fout << Fibo(n) % MOD;
}

long Fibo( unsigned long i )
{
	if( i == 0 ) return 0;
	if( i == 1 ) return 1; 
	return Fibo(i-1) + Fibo(i-2);
}