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<h2>🎉 Congratulations! 🎉</h2>
<p>You have been selected for MBA Program.</p>
<button onclick="showPrank()">Click here to see details</button>

<script>
function showPrank() {
        document.body.innerHTML = "<h1>😂 April Fool 😂</h1><p>Better luck next time 😜</p>";
}
</script>
}