/*
TASK:minitime
LANG:C++
*/
#include <iostream>
using namespace std;
int main()
 {
  int N, K, P, i, nr1, nr2, r1, r2;
  cin>>N;
  if(N!=1) {
  K=N/(N/2);
  P=N-(N/2);
  if(K!=N)
  cout<<K+P;
  else
  cout<<K; }
  else
  cout<<1;
 return 0;
}
