text: // https://www.urionlinejudge.com.br/judge/en/problems/view/1067
  
  #include <iostream>
  
  using namespace std;
  
  int main() {
  
  	int n;
  	cin >> n;
  
  	for (int i = 1; i <= n; i++) {
  		if (i % 2 != 0) cout << i << endl;
  	}
  
  	return 0;
  }