#include <bits/stdc++.h>   using namespace std;   int32_t main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long n;     cin >> n;     vector<long long> arr(n);     for (long long i = 0; i < n; i++) {       cin >> arr[i];     }     sort(arr.begin(), arr.end());     if (arr[n - 1] == 1) {       arr[n - 1] = 2;     } else {       arr[n - 1] = 1;     }     sort(arr.begin(), arr.end());     for (long long i = 0; i < n; i++) {       cout << arr[i] <<    ;     }   }   