/*****************************************************************
 print elements of A separated by commas
 *****************************************************************/
#include <iostream>
using namespace std;

int main()
{
  // read size n, allocate array of n doubles, read values into array
  int n;
  cin >> n;
  double * A = new double[n];
  for(int i = 0; i < n; i++)
    cin >> A[i];

  // Now what?
  cout << "A = [";
  cout << A[0];
  for(int i = 1; i < n; i++)
    cout << ", " << A[i];
  cout << "]" << endl;

  return 0;
}