title: How to remove numbers from a list which contain repeated digits?
body: <p>I am trying to solve the following problem:</p>
  <p>I have a pretty long list of integer numbers in a given range, most of them contain numbers with repeated digits like in the example below.</p>
  <p><code>[123456, 889756, 854123, 997886, 634178]</code></p>
  <p>My goal is to remove the ones with repeated digits or get a new list with numbers having only distinct digits:</p>
  <p><code>[123456, 854123, 634178]</code></p>
  <p>Is there a nice way how to do this? Thank you very much in advance!</p>