/* Version a */
define f(a[], l) {
auto i
for (i = 0; i < l; i++) a[i]
}
/* Version b */
define g(a[]) {
for (i = 0; a[i] != -1; i++) a[i]
/* Version c */
define h(a[]) {
for (i = 1; i <= a[0]; i++) a[i]