title: Consecutive addition of numbers in a string
body: <p>I'm a new programmer learning python and am having trouble with how to approach this task:</p>
  
  <p>So essentially I have a string of numbers to read imported from a file, and need to add the sum of the first number to the second and convert it to the correct ascii character.  So, for example if I am reading the string:</p>
  
  <pre><code>'36 30 25 40 80 4' 
  </code></pre>
  
  <p>I would want to add 36 to 30, then 25 to 40, then 80 to 4 and so on, before converting them to the corresponding ASCII character and printing (so in this case 'CAT').</p>
  
  <p>So far i recognize that i need to use a split command to split the string, and then a for loop to take the data for consecutive numbers. I can get the correct value for the first letter, but am having trouble 'telling' the program to atuomatically move on to add [2] to [3] after adding [1] to [0]. I also need to do this for multiple lines.  </p>
  
  <p>Again, I'm a new coder so any help is greatly appreciated. Thanks!</p>