function solve() {
    // деструкториране на querySelector
    let [generateButton, buyButton] = [...document.querySelectorAll('button')];
    let [textArea1, textArea2] = [...document.querySelectorAll('textarea')];

    generateButton.addEventListener('click', () => {
        let products = JSON.parse(textArea1.value);
        products.forEach(o => {
            // деструкториране на обект
            let {img, name, price, decFactor} = o;
            // създаване на htmlString
            let htmlString = `<tr><td>
                              <img src="${img}">
                               </td><td><p>${name}</p>
                               <td><p>${Number(price)}</p></td>
                                <td><p>${Number(decFactor)}</p></td>
                               <td><input type="checkbox"/></td>
                               </tr>`;
            // добавяне на htmlString към html-а на страницата
            let tBody = document.querySelector('tbody');
            tBody.insertAdjacentHTML('beforeend', htmlString);
        });
    });

    buyButton.addEventListener('click', () => {
        let [products, prices, decFactors] = [[], [], []];
        // взимане и итериране на html elements
        [...document.querySelectorAll('tbody tr')].forEach(tr => {
            if (tr.querySelector('input').checked) {
                let data = tr.querySelectorAll('p');
                products.push(data[0].textContent);
                prices.push(Number(data[1].textContent));
                decFactors.push(Number(data[2].textContent));
            }
        });
        // взимане на стойности с амумолатор
        let totalPrice = prices.reduce((acc, curr) => acc + curr);
        let avgFactor = decFactors.reduce((sum, num) => (sum + num) / decFactors.length)
        textArea2.value = `Bought furniture: ${products.join(', ')}\nTotal price: ${totalPrice.toFixed(2)}\nAverage decoration factor: ${avgFactor.toFixed(2)}`;
    });

}