https://www.youtube.com/watch?v=XxceY97NjEU

obmep.js

/* OBMEP 2015 - 2ª Fase - Data */

function sum_digit(number) {
  var result = 0;
  while (number) {
    result += number % 10;
    number = Math.floor(number / 10);
  }
  return result;
}

function reverse_number(number) {
  var result = 0;
  while (number > 0) {
    result *= 10;
    result += number % 10;
    number = Math.floor(number / 10);
  }
  return result;
}

for (var number = 10; number < 100; number++) {
  console.log(((sum_digit(number - sum_digit(number)) + 4) * reverse_number(sum_digit(number - sum_digit(number)) + 4)) * 3)
}

Bacana demais !!!
Minha solução > https://gist.github.com/Woodsphreaker/36e194f1742acd89ab426bbd1285f04c