#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  if (n % 2 == 0) {
    for (int i = 0; i < n; i++) {
      if (i % 2 == 0) {
        cout << i + 2;
      } else {
        cout << i;
      }
      if (i != n - 1) cout << " ";
    }
    cout << endl;
  } else if (n == 1) {
    cout << '1' << endl;
  } else {
    for (int i = 0; i < n - 2; i++) {
      if (i % 2 == 0) {
        cout << i + 2;
      } else {
        cout << i;
      }
      cout << " ";
    }
    cout << n << " " << n - 2 << endl;
  }
  return 0;
}
