title: Command for replace nth symbol in vim
body: <p>I am trying to write command in Vim which can delete 9th and 11th symbols in third line. I did this <code>3s/.{9,11}//</code> but it did not work. It would be grateful to do this with your suggestions.
  Here is an example. I have three lines</p>
  <blockquote>
  <p>three metres above the sea</p>
  <p>three metres below the sea</p>
  <p>need some help in vim</p>
  </blockquote>
  <p>So I want to delete 9th symbol in third line which is &quot;e&quot; letter in word &quot;some&quot; and 11th symbol which is letter &quot;h&quot; in word &quot;help&quot;.</p>