function solve() {
   document.querySelector('#searchBtn').addEventListener('click', onClick);

   let rows = document.querySelectorAll('tbody tr')
   let input = document.getElementById('searchField')
   function onClick() {
      for (const row of rows) {
         row.classList.remove('select')
         if(row.innerHTML.includes(input.value)) {
            row.className = 'select'
         }
      }
      input.value = ''
   }
}