shuffling cards

[Amichai Teumim]

I want to shuffle a deck of cards and then print out the top five cards.

#!/usr/bin/perl

@startingdeck = ("A H","2 H","3 H","4 H","5 H","6 H","7 H","8 H",
                "9 H","10 H","J H","Q H","K H",
                "A D","2 D","3 D","4 D","5 D","6 D","7 D","8 D",
                "9 D","10 D","J D","Q D","K D",
                "A C","2 C","3 C","4 C","5 C","6 C","7 C","8 C",
                "9 C","10 C","J C","Q C","K C",
                "A S","2 S","3 S","4 S","5 S","6 S","7 S","8 S",
                "9 S","10 S","J S","Q S","K S");

for ($x=0;$x<100;$x++){

  $shuffle1 = shift(@startingdeck);
  $ahuffle2 = shift(@startingdeck);
  $ahuffle3 = pop(@startingdeck);
  $ahuffle4 = pop(@startingdeck);

  push(@startingdeck,$shuffle1,$shuffle3,$shuffle2,$shuffle4);
  print "@startingdeck\n";
}

I know I'm meant to use loops. Maybe "for loops". I still don't quite
understand the loops. I've read over the doc for loops several times. I want
to learn this, so please provide me with hints and tips as opposed to plain
solutions if possible please.

Thanks

Amichai