title: Compute difference between specific element in two lists that are in a list
body: <p>I have a list that contains multiple lists -</p>
  
  <pre><code>[[568, 436, 176, 84, 405],
   [1890, 436, 177, 82, 404],
   [2069, 436, 102, 82, 403],
   [2173, 436, 202, 81, 402],
   [5, 437, 71, 83, 401],
   [78, 437, 182, 83, 400],
   [263, 437, 139, 83, 399],
   [404, 437, 162, 83, 398],
   [747, 437, 170, 82, 397],
   [920, 437, 169, 82, 396],
   [1091, 437, 171, 82, 395],
   [1265, 437, 168, 82, 394],
   [1436, 437, 127, 82, 393],
   [1565, 437, 138, 82, 392],
   [1705, 437, 183, 81, 391],
   [263, 520, 139, 84, 390],
   [2069, 520, 102, 82, 389],
   [2174, 520, 202, 81, 388],
   [1566, 521, 137, 82, 387],
   [1706, 521, 182, 81, 386],
   [1891, 521, 176, 81, 385],
   [3, 522, 73, 82, 384],
   [78, 522, 183, 82, 383],
   [405, 522, 161, 82, 382],
   [569, 522, 176, 82, 381],
   [747, 522, 170, 82, 380],
   [920, 522, 169, 82, 379],
   [1092, 522, 170, 82, 378],
   [1265, 522, 169, 81, 377],
   [1436, 522, 127, 81, 376],
   [2069, 604, 102, 82, 375],
   [2174, 604, 202, 82, 374],
   [1566, 605, 137, 82, 373],
   [1706, 605, 182, 82, 372],
   [1891, 605, 176, 81, 371],
   [747, 606, 171, 82, 370],
   [920, 606, 169, 82, 369],
   [1092, 606, 171, 82, 368],
   [1265, 606, 169, 82, 367],
   [1436, 606, 127, 81, 366],
   [5, 607, 71, 82, 365],
   [78, 607, 183, 82, 364],
   [263, 607, 139, 82, 363],
   [405, 607, 161, 82, 362],
   [569, 607, 176, 82, 361]]
  </code></pre>
  
  <p>I need to compute the difference between the second element of each list, and if the difference is greater than 80, separate the list into individual list of lists, with an added index to separate them</p>
  
  <p>Expected Output -</p>
  
  <p>List 1 - </p>
  
  <pre><code> [568, 436, 176, 84, 405],
   [1890, 436, 177, 82, 404],
   [2069, 436, 102, 82, 403],
   [2173, 436, 202, 81, 402],
   [5, 437, 71, 83, 401],
   [78, 437, 182, 83, 400],
   [263, 437, 139, 83, 399],
   [404, 437, 162, 83, 398],
   [747, 437, 170, 82, 397],
   [920, 437, 169, 82, 396],
   [1091, 437, 171, 82, 395],
   [1265, 437, 168, 82, 394],
   [1436, 437, 127, 82, 393],
   [1565, 437, 138, 82, 392],
   [1705, 437, 183, 81, 391]
  </code></pre>
  
  <p>List 2 - </p>
  
  <pre><code> [263, 520, 139, 84, 390],
   [2069, 520, 102, 82, 389],
   [2174, 520, 202, 81, 388],
   [1566, 521, 137, 82, 387],
   [1706, 521, 182, 81, 386],
   [1891, 521, 176, 81, 385],
   [3, 522, 73, 82, 384],
   [78, 522, 183, 82, 383],
   [405, 522, 161, 82, 382],
   [569, 522, 176, 82, 381],
   [747, 522, 170, 82, 380],
   [920, 522, 169, 82, 379],
   [1092, 522, 170, 82, 378],
   [1265, 522, 169, 81, 377],
   [1436, 522, 127, 81, 376]
  </code></pre>
  
  <p>List 3 - </p>
  
  <pre><code> [2069, 604, 102, 82, 375],
   [2174, 604, 202, 82, 374],
   [1566, 605, 137, 82, 373],
   [1706, 605, 182, 82, 372],
   [1891, 605, 176, 81, 371],
   [747, 606, 171, 82, 370],
   [920, 606, 169, 82, 369],
   [1092, 606, 171, 82, 368],
   [1265, 606, 169, 82, 367],
   [1436, 606, 127, 81, 366],
   [5, 607, 71, 82, 365],
   [78, 607, 183, 82, 364],
   [263, 607, 139, 82, 363],
   [405, 607, 161, 82, 362],
   [569, 607, 176, 82, 361]
  </code></pre>
  
  <p>This needs to repeatable for any number of lists present and not just three</p>