function solve() {
  let boughtFurniture = document.getElementsByTagName("textarea")[1].value;
  let tableBody = document.getElementsByTagName("tbody")[0];
  let buttons = document.getElementsByTagName("button");
  let generateBtn = buttons[0];

  generateBtn.addEventListener("click", () => {
    let json = JSON.parse(document.getElementsByTagName("textarea")[0].value);

    for (const furniture of json) {
      let row = document.createElement("tr");

      let image = document.createElement("td");
      image.innerHTML = `<img src ="${furniture.img}">`;
      row.appendChild(image);

      let nametable = document.createElement("td");
      let p = document.createElement("p")
      p.textContent = furniture.name;
      nametable.appendChild(p);
      row.appendChild(nametable);

      let priceTable = document.createElement("td");
      let p1 = document.createElement("p")
      p1.textContent = furniture.price;
      priceTable.appendChild(p1);
      row.appendChild(priceTable);

      let decFac = document.createElement("td");
      let p2 = document.createElement("p")
      p2.textContent = furniture.decFactor;
      decFac.appendChild(p2);
      row.appendChild(decFac);

      let checkBox = document.createElement("td");
      let chB = document.createElement("input");
      chB.setAttribute("type", "checkbox");
      checkBox.appendChild(chB);
      row.appendChild(checkBox);

      tableBody.appendChild(row);
    }
  });

  let buyBtn = buttons[1];

  let checkedFurniture = [];
  let totalPrice = 0;
  let decorationFactor = 0;
  let count = 0;

  buyBtn.addEventListener("click", () => {
      let trElements = Array.from(document.getElementsByTagName('tr'));
      for (let i = 2; i < trElements.length; i++) {
        if (trElements[i].children[4].children[0].checked) {
          checkedFurniture.push(trElements[i].children[1].textContent);
          totalPrice += Number(trElements[i].children[2].textContent);
          decorationFactor += Number(trElements[i].children[3].textContent);
          count++;
        }
      }

      boughtFurniture = `Bought furniture: ${checkedFurniture.join(", ")}.\nTotal price: ${totalPrice.toFixed(2)}.\nAverage decoration factor: ${decorationFactor/count}.`;
  });
}