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