#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long n;
  cin >> n;
  long long a[n];
  for (long long i = 0; i < n; i++) cin >> a[i];
  sort(a, a + n);
  cout << a[n - 1] << " ";
  for (long long i = 1; i < n - 1; i++) cout << a[i] << " ";
  cout << a[0];
}
