#include<bits/stdc++.h>

#define all(s) s.begin(),s.end()
#define rc(x) return cout<<x<<endl,0
#define forn(i,n) for(int i=0;i<int(n);i++)

#define pb push_back
#define mp make_pair
#define fr first
#define sc second

typedef long long ll;
typedef long double ld;

const int nmax=2e5+3;
const int mod=666013;
const ll inf=0x3f3f3f3f3f3f3f3f;

using namespace std;

int main()
{
  freopen("kfib.in","r",stdin);
  freopen("kfib.out","w",stdout);
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n;
  cin>>n;
  int a=1,b=1,c;
  if(n<2) rc(0);
  for(int i=2;i<n;i++)
  {
      c=(a+b)%mod;
      a=b%mod;
      b=c%mod;
  }
  cout<<c;
}