function solve() {
   let addBtn = document.querySelector('#add-new > button:nth-child(5)');
   let productAtributes = Array.from(document.querySelectorAll('#add-new input'));
   let availableProducts = document.querySelector('#products > ul:nth-child(2)');
   let myProducts = document.querySelector('#myProducts > ul:nth-child(2)');
   let totalPrice = document.querySelector('body > h1:nth-child(4)');
   let sum = 0;


   addBtn.addEventListener('click', function addProduct(e){
      e.preventDefault();
      let name = productAtributes[0].value;
      let quatity = Number(productAtributes[1].value);
      let price = Number(productAtributes[2].value);


      let li = document.createElement('li');

      let span = document.createElement('span');
      span.textContent = name;

      let strong = document.createElement('strong');
      strong.textContent = `Available: ${quatity}`;

      let div = document.createElement('div');

      let strong2 = document.createElement('strong');
      strong2.textContent = `${price.toFixed(2)}`;

      let addToClientList = document.createElement('button');
      addToClientList.textContent = "Add to Client's List";

      addToClientList.addEventListener('click', function addToClientList(ev){

         let liClient = document.createElement('li');

         let strongLi = document.createElement('strong');
         strongLi.textContent = `${price.toFixed(2)}`;

         liClient.textContent = `${name}`
         liClient.appendChild(strongLi);

         myProducts.appendChild(liClient);

         sum+=price;

         quatity-=1;
         if (quatity<=0){
            li.remove();
         }else{
            strong.textContent = `Available: ${quatity}`;
         }


         totalPrice.textContent = `Total Price: ${sum.toFixed(2)}`;
      })

      div.appendChild(strong2);
      div.appendChild(addToClientList);

      li.appendChild(span);
      li.appendChild(strong);
      li.appendChild(div);

      availableProducts.appendChild(li);

      let buyAllProducts = document.querySelector('#myProducts > button:nth-child(3)');

      buyAllProducts.addEventListener('click', function buyAllProducts(){

         totalPrice.textContent = 'Total Price: 00.00';
         let ulMyproducts = document.querySelector('#myProducts > ul:nth-child(2)');
         let parent = ulMyproducts.parentElement;

         let emptyUl = document.createElement('ul');
         parent.replaceChild(emptyUl, ulMyproducts);

      })

   })
}