Help me in solving HTML12 problem

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<body>
    <h2>About Greece</h2>
    <p> <u>Greece</u> officially the hellenic Republic is a country in South East Europe.
    <br>
    Greece has the longest coastline on the Mediterranean Basin, featuring thousands of islands.
    </P>
    <h2>Importance of Greece</h2>
<p><i>Greece is considered the cradle of Western civilization, being the birthplace of democracy, Western philosophy, Western literature, historiography, political science, major scientific and mathematical principles, theatre and the Olympic Games.</i></p>

    
</body>

Learning course: Learn HTML / CSS
Problem Link: Recap Practice Problem in HTML / CSS - CodeChef