#include <bits/stdc++.h>
using namespace std;
int a[100007], n;
bool ok = false;
int main() {
  scanf("%d", &n);
  for (int i = 0; i < n; ++i) scanf("%d", &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) printf("%d ", a[i]);
  return 0;
}
