#include <stl.h>
#include <iostream.h>

int numbers[8] = { 0, 1, 1, 2, 2, 2, 3, 4 };

int main ()
{
  unique (numbers, numbers + 8);
  for (int i = 0; i < 8; i ++)
    cout << numbers[i] << ' ';
  cout << endl;
  return 0;
}