#include <bits/stdc++.h>
using namespace std;
const int N = 2e2;
int i, a[N], n;
int main() {
  cin >> n;
  for (i = 0; i < n; i++) cin >> a[i];
  sort(a, a + n);
  cout << a[n - 1] << " ";
  for (i = 1; i < n - 1; i++) cout << a[i] << " ";
  cout << a[0];
  return 0;
}
