function solve(str) {

  // let formula = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));

  // console.log(formula);

  let arr = str.split(/[^A-Za-z]/g);

  arr = arr.map(el => el.toUpperCase());

  arr = arr.filter(el => el !== '');

  console.log(arr.join(', '));

}


solve(

  'Hi,..how %are-you?'

);


solve(

  'hel666lo'

);