#include<iostream>
#include<fstream>
using namespace std;
int k,i,x,y,z;
ifstream f("kfib.in");
ofstream g("kfib.out");
int main()
{f>>k;
x=1;
y=1;
for(i=3;i<=k;i++)
	{z=(x+y)%666013;
	x=y;
	y=z;
	}
g<<z%666013;
f.close();
g.close();
return 0;
}