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<!DOCTYPE html>
<html lang="en" dir="ltr">
    <head>
        <script src="coba.js"></script>
    </head>
    <body>
        <div id="petition-form">
            <form>
                <input id="first-name" type="text">
                <input id="last-name" type="text">
                <input id="city" type="text">
                <input id="zip-code" type="number">
                <div id="warning"></div>
                
                <button type="submit" id="submit-form-button">Submit</button>
            </form>
            
        </div>
        
    </body>
</html>
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