title: What does In[num] mean in jupyter notebooks?
body: <p>I know that <code>In[*]</code> means the kernel is running</p>
  
  <p><a href="https://i.stack.imgur.com/KUlXF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/KUlXF.png" alt="enter image description here"></a></p>
  
  <p>But what does <code>In[93]</code> mean?</p>
  
  <p><a href="https://i.stack.imgur.com/726Yr.png" rel="noreferrer"><img src="https://i.stack.imgur.com/726Yr.png" alt="enter image description here"></a></p>
  
  <p>Does that mean the total number of seconds to execute the cell or is that the line number?</p>