use Thread;
$| = 1;
srand($$^$^T);
sub printargs {
    my(@copyargs) = @_;
    my $thread = shift @copyargs;
    my $arg;
    my $i;
    while ($arg = shift @copyargs) {
        my $delay = int(rand(500));
        $i++;
        print "$thread arg $i is $arg\n";
        1 while $delay--;
    }
}
sub start_thread {
    my(@threadargs) = @_;
    my $thread = $threadargs[0];
    my $count = 10;
    while ($count--) {
        my(@args) = ($thread) x int(rand(10));
        print "$thread $count calling printargs @args\n";
        printargs($thread, @args);
    }
}
new Thread (\&start_thread, "A");
new Thread (\&start_thread, "B");
new Thread (\&start_thread, "C");
new Thread (\&start_thread, "D");
new Thread (\&start_thread, "E");
new Thread (\&start_thread, "F");
print "main: exiting\n";