title: Split string in c#
body: <p>I've a string</p>
  
  <pre><code>NULL ({ 8 9 36 37 }) John ({ 1 }) Loizou ({ 2 3 }) delves ({ 4 }) into ({ 5 })
  </code></pre>
  
  <p>how can I get?</p>
  
  <pre><code>NULL 8,9,36,37_
  Jogn 1_
  Loizou 2,3_
  delves 4_
  into 5 
  </code></pre>
  
  <p>I using c#. </p>