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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("kfib.in");
ofstream fout("kfib.out");
int n;
int a[1][2];
void inmultire_matrici(int f1[1][2])
{
int f[1][2];
f[0][0] = f1[0][1];
f[0][1] = f1[0][0] + f1[0][1];
f1[0][0] = f[0][0];
f1[0][1] = f[0][1];
}
int main()
{
fin>>n;
if(n==0)
fout<<0;
else
{
a[0][0] = 0;
a[0][1] = 1;
for(int k=1;k<=n-1;k++)
inmultire_matrici(a);
fout<<a[0][1]%666013;
}
return 0;
}