title: Sequence to insert an elements in stacks and queues
body: <p>Does the sequence to insert an element really matters in stacks or queues,i mean to push or to enqueue the data either at start or at the end given we are popping from top in a stack and dequeue from the head in a queue.........Forgive me if this has been already asked.</p>
  
  <p>I hope the question is clear.Thanks in advance.</p>