Chrs_old_vids_31-44.zip May 2026

In this specific exercise, the goal is to demonstrate how compression works by identifying repeating patterns. To solve it correctly within the tool:

Use underscores ( _ ) instead of spaces or dashes. CHRS_old_vids_31-44.zip

Ensure "CHRS" is in all caps and "vids" is lowercase, matching the original filename exactly. In this specific exercise, the goal is to

This puzzle is designed to show how a computer can represent a string of data more efficiently by using symbols for repeated sequences like "old_vids". In this specific exercise

Do not include the .zip suffix in the text box.

The "proper text" for the puzzle in the Code.org CS Principles Lossless Compression lesson is: CHRS_old_vids_31-44

<div id="{%=id%}" class="reveal-modal small h-alert-modal-popup" data-reveal>
    <div class="first-modal-focus focus-utility-element" tabindex="0" aria-label="Inside Modal"></div>

<h4 id="{%=id%}_title" class="margin-bottom-10 popup-title"></h4>
    <div id="{%=id%}_body" class="margin-bottom-10 popup-body">
        </div>

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>