"hello, world.\n";

##</code><code>##

    print "hello, world.\n";

##</code><code>##

    sub string {
        return ("hello, world.\n");
    }
    print string();

##</code><code>##

    sub f1 { return ("hello, world.\n"); }
    sub pi { return (3.14159); }
    
    for (1..10) {
        print f1();
    }