extern printf ();
enum S {  x1, x2};

main () {
  struct S {
    int abdd;
  } j;
  int i = x1;
  switch(i) {
    case 1:
    case 2: printf ("%d\n",45);
    default: printf ("%d\n",45);;;
  }
  if(i) { printf ("%d\n",i); }
  while(i--) { 2; }
  for(i; i; i++);
  do {3;}
  while (i);
}