#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  int a[1000];
  cin >> 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] << endl;
}
