function solve() {
  const makeInput = document.getElementById('make');
  const modelInput = document.getElementById('model');
  const productionInput = document.getElementById('year');
  const fuelType = document.getElementById('fuel');
  const originPrice = document.getElementById('original-cost');
  const sellPrice = document.getElementById('selling-price');
  const ulCarsList = document.getElementById('cars-list');
  const profit = document.getElementById('profit');
  const publishBtn = document.getElementById('publish');
  const tbody = document.getElementById('table-body');

  publishBtn.addEventListener('click', onPublish)

  function onPublish(e) {
    e.preventDefault();

    let make = makeInput.value
    let model = modelInput.value
    let product = Number(productionInput.value)
    let fuel = fuelType.value
    let oPrice = Number(originPrice.value);
    let sPrice = Number(sellPrice.value)

    if (sPrice <= oPrice || !make || !model || !product || !fuel)  return;

    let publish = onCreate(make, model, product, fuel, oPrice, sPrice)
    tbody.appendChild(publish)

    makeInput.value = "";
    modelInput.value = "";
    productionInput.value = "";
    fuelType.value = "";
    originPrice.value = "";
    sellPrice.value = "";

  }