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

int input [3] = { 1, 2, 3 };

int main ()
{
  int output[3];
  transform (input, input + 3, output, negate<int> ());
  for (int i = 0; i < 3; i++)
    cout << output[i] << endl;
  return 0;
}