#include <stdio.h>
int f(void)
{
	printf("Function\n");
}
int main(void) {
    int (*ptr[1])(); 
    ptr[0] = f;
    (*(ptr[0]))();         /* Line 1 */
    (*(*(ptr[0])))();      /* Line 2 */
    ptr[0]();	   /* Line 3 */
    (*ptr)();
    return 0;
}