title: Convert list of keys and list of values to a dictionary
body: <p>I have these lists:</p>
  
  <pre><code>list1 = ["a","b","c"]
  list2 = ["1","2","3"]
  </code></pre>
  
  <p>I need to add them to a dictionary, where list1 is the key and list2 is the value.</p>
  
  <p>I wrote this code:</p>
  
  <pre><code>d = {}
  for i in list1:
      for j in list2:
          d[i] = j
  print d
  </code></pre>
  
  <p>The output is this:</p>
  
  <pre><code>{'a':'3','b':'3','c':'3'}
  </code></pre>
  
  <p>What's wrong with this code? How can I write it so the output is</p>
  
  <pre><code>{'a':'1','b':'2','c':'3'}
  </code></pre>
  
  <p>Thanks!</p>