title: Transpose block of text
body: <p>I have a block of ones and zeroes, in string:</p>
  
  <pre><code>1111110000111111
  1110110110110111
  1101010110101011
  1011100110011101
  0001111111111011
  1000110111110111
  0100010011110000
  0110000001111110
  0111000000110110
  0000100010010100
  1110110011000111
  1101111111100011
  1011100110000011
  1101010111100001
  1110110110111101
  1111110000111111
  </code></pre>
  
  <p>I want to transpose it, as if it was a matrix - but keep it in string.</p>
  
  <p>Before I start writing nested for loops, is there an easier way?</p>