text: tableText = ''
  
  for tableNr in range (1, 11):
      tableText += f'<b>Table of {tableNr}:</b><br>'
      
      for lineNr in range (1, 11):
          tableText += f'{lineNr} x {tableNr} = {lineNr * tableNr}<br>'
          
      tableText += '<br>'
  
  document.getElementById ('output') .innerHTML = tableText
  