function solve() {
  let buttons = document.getElementsByTagName('button');
  let generateBtn = buttons[0];
  let textAreas = document.getElementsByTagName('textarea');
  let namesOfFurnitures = [];
  let totalPrice = 0;
  let totalDecorations = 0;
  let counter = 0;

  generateBtn.addEventListener('click', () => {
    let inputOfFurnitures = textAreas[0].value;
    inputOfFurnitures = JSON.parse(inputOfFurnitures);

    for (let i = 0; i < inputOfFurnitures.length; i++) {
      fillUpTableWithFurnitures(inputOfFurnitures[i]);
    }
  });

  let buyBtn = buttons[1];

  buyBtn.addEventListener('click', () => {
    let inputs = document.getElementsByTagName('input');
    Array.from(inputs);



    for (const input of inputs) {
      if (input.checked === true) {
        let parent = input.parentElement.parentElement.children;
        let name = parent[1].innerText.trim();
        let price = +parent[2].innerText;
        let decorFac = +parent[3].innerText;

        namesOfFurnitures.push(name);
        totalPrice += price;
        totalDecorations += decorFac;
        counter++;

        textAreas[1].value = getOutput(namesOfFurnitures,totalPrice,totalDecorations);
      }
    }
  });

  function fillUpTableWithFurnitures(furniture) {
    let tbody = document.getElementsByTagName('tbody')[0];
    let row = tbody.insertRow(-1);

    let img = document.createElement('img');
    img.src = furniture.img;

    let input = document.createElement('input');
    input.setAttribute('type', 'checkbox');

    row.insertCell(0).appendChild(img);
    let p1 = document.createElement('p');
    let p2 = document.createElement('p');
    let p3 = document.createElement('p');
    row.insertCell(1).appendChild(p1).innerHTML = furniture.name;
    row.insertCell(2).appendChild(p2).innerHTML = furniture.price;
    row.insertCell(3).appendChild(p3).innerHTML = furniture.decFactor;
    row.insertCell(4).append(input);
  }

  function getOutput(namesOfFurnitures,totalPrice,totalDecorations) {
    // let sum = selectedFunitures['averageDecFac'].reduce((a, b) => a + b, 0);
    let average = (
      totalDecorations / counter
    ).toFixed(1);

    return (
      `Bought furniture: ${namesOfFurnitures.join(', ')}\n` +
      `Total price: ${totalPrice.toFixed(2)}\n` +
      `Average decoration factor: ${average}\n`
    );
  }
}