use strict;
use warnings;

$|=1;

if (fork() == 0) {
   print("$$: Child 1.$/");
   sleep(3);
} elsif (fork() == 0) {
   print("$$: Child 2.$/");
   sleep(3);
} else {
   print("$$: Parent.$/");
   sleep(3);
}

print("$$: oye.$/");