void main() {
  int a[] = {1, 2};
  int b[] = {[3]=3};
  int c[2][3] = {1, 2, 3, 4, 5, 6};
  struct foo {
    double x;
    int y;
  };
  struct foo f = {.y=999};
  
  
  typedef struct Interval {
    int left;
    int right;
  } Interval;

  typedef struct IntervalList {
	Interval value;
	Interval* next;
  } IntervalList;

  Interval result={.left = 2, .right = 3};
  IntervalList list2 = {.value = result, .next = 0};

}