#include <bits/stdc++.h>
using namespace std;
long long n, a[100005];
int main() {
  ;
  cin >> n;
  for (int i = 0; i < n; i++) cin >> a[i];
  sort(a, a + n);
  if (a[n - 1] == 1)
    a[n - 1] = 2;
  else
    a[n - 1] = 1;
  sort(a, a + n);
  for (int i = 0; i < n; i++) cout << a[i] << " ";
}
