function solve () {
  let rows = Array.from(document.querySelectorAll('tr'))
  rows.shift()
  let searchItem = document.querySelector('#searchField')
  let searchButton = document.querySelector('#searchBtn')
  searchButton.addEventListener('click', search)

  function search () {
    let searchedText = searchItem.value

    for (let row of rows) {
      row.removeAttribute('class', 'select')

      for (let td of Array.from(row.children)) {
        if (td.textContent.includes(searchedText)) {
          row.setAttribute('class', 'select')
          break
        }
      }
    }
    searchItem.value = ''
  }
}