title: Multidimensional List C#
body: <p>I need to create a multidimensional guard List three values​​, X, Y and Z, and I need a List that is because once the value is queried, the array must be removed.</p>
  
  <p>The query would look something like this: List [0] [0] = X, List [0] [a] = Y and List [0] [2] = X, so that I can remove only the index 0 and he already remove all the other three.</p>