/* tak.c */
#include <stdio.h>
#define TIMES 1
tak(x, y, z)
int x;
int y;
int z;
{
  if (!(y < x)) return(z);
  else {
    return (
      tak (
	tak (x-1, y, z),
	tak (y-1, z, x),
	tak (z-1, x, y) ));
  }
}
main()
{
  int i, t;
  t = 0;
  for (i=0; i<TIMES; i++)
    t += tak(18, 12, 6);
  t = t / TIMES;
  printf("tak(18,12,6) result = %d, %d times\n", t, TIMES);
}