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