code: private void given(CharSequence s, int wanted, int got) {
          red.append(s);
          given += got;
          LOGGER.trace("Given: [" + wanted + "," + got + "]-" + s);
      }
docs: Keep track of what we've given them.
  
  @param s the sequence of characters given
  @param wanted the number of characters wanted
  @param got the number of characters given