title: Printing Binary values using nested loops
body: <p>I need to write a section of code that outputs the binary value up to a user defined number (0-7). 
  We can't use .toBinaryString it has to be using loops (for loops preferably). </p>
  
  <p>The output should be three columns with filler zeros. <br>
  Ex) User enters 7<br></p>
  
  <p>001<br>
  010<br>
  100<br>
  101<br>
  110<br>
  111</p>
  
  <p>It seems like it should be so simple but I cant seem to get it right.</p>