n class='id identifier rubyid_tap'>tap</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_s'>s</span><span class='op'>|</span>
  <span class='id identifier rubyid_s'>s</span><span class='period'>.</span><span class='id identifier rubyid_x'>x</span> <span class='op'>=</span> <span class='int'>200</span>
  <span class='id identifier rubyid_s'>s</span><span class='period'>.</span><span class='id identifier rubyid_y'>y</span> <span class='op'>=</span> <span class='int'>