#include <iostream.h>

extern int a[];   // Declare array

int main(int argc, char *argv[])
{
   int i;

   int f(int);   // Declare function

   for ( i = 0; i < 10; i++ )
      a[i] = i*i;


   for ( i = 0; i < 10; i++ )
      cout << f(i) << endl;
}