title: Python, result from Console,Error, String format
body: <p>I have a problem with my console program.<br />
  A total of four initial results are expected from me, the interesting thing is that two of them work correctly, the other two make the following mistake...</p>
  <p>Also, since I'm a beginner, I want to ask how to create a variable that can read both text and number.</p>
  <p><img src="https://i.stack.imgur.com/jC4Uc.png" alt="" /></p>