#include <bits/stdc++.h>
using namespace std;
int main() {
  int a[110], i, n;
  while (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] << endl;
  }
  return 0;
}
