title: How do i change char to number?
body: <p>i need to change some character into numbers for example:</p>
  
  <p>I = 1</p>
  
  <p>R = 2</p>
  
  <p>E = 3</p>
  
  <p>A = 4</p>
  
  <p>S = 5</p>
  
  <p>G = 6</p>
  
  <p>T = 7</p>
  
  <p>B = 8</p>
  
  <p>P = 9</p>
  
  <p>O = 0</p>
  
  <p>input example: HELLO IM GOOD</p>
  
  <p>output example: H3LL0 1M G00D</p>