gistfile1.html

        <div class="solution" data-type="set">
          <div class="set-sol" data-type="multiple">
            <span class="sol"><var>X1</var></span>
            <span class="sol"><var>Y1</var></span>
          </div>
          <div class="set-sol" data-type="multiple">
            <span class="sol"><var>X2</var></span>
            <span class="sol"><var>Y2</var></span>
          </div>

          <div class="input-format">
            <p class="entry" data-type="multiple">
              <code><var>X</var> = </code><span class="sol"></span>
              <code><var>Y</var> = </code><span class="sol"></span>
            </p>
          </div>

          <p class="example">two integer solutions for x and y</p>

        </div>