#include <stdio.h>

#define EXPT(CODE) do { printf ("//    %s\n", #CODE); CODE } while (0)

int
main (void)
{
  int i, j;
  EXPT (i = 5);
  EXPT (i++);
  EXPT (printf ("i = %d\n", i));
  for (j = 0; j < 10; j++)
    EXPT (i += j);
  EXPT (printf ("i = %d\n", i));

  return 0;
}