class MyArrayList1 <T>
{
 private T[] array;
 
 public MyArrayList1(int n)
 {
  array = (T[]) new Object[n];
 }

 public T get(int i)
 {
  return array[i];
 }

 public void set(int i,T item)
 {
  array[i]=item;
 }

 public int size()
 {
  return array.length;
 }

 public String toString()
 {
  String str = "[";
  if(array.length>0)
     str=str+array[0];
  for(int i=1; i<array.length; i++)
     str=str+","+array[i];
  return str+"]";
 }
}