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