ta-a2a-title="AtCoder">
            <a class="a2a_button_facebook"></a>
            <a class="a2a_button_twitter"></a>

            <a class="a2a_button_telegram"></a>

            <a class="a2a_dd" href="https://www.addtoany.com/share"></a>
        </div>


        <script async src="//static.addtoany.com/menu/page.js"></script>

    </div>
    <hr>
</div>

<div class="container" style="margin-bottom: 80px;">
    <footer class="footer">

        <ul>
            <li><a href="/tos">Terms of service</a></li>