"use strict"

function gugu(x){
  var dan = x;
  var i;
  var text="";

  for (i = 1 ; i < 10 ; i++){
    text = text + x + " * " + i + " = " + dan *i + "<br>";
  }

  document.getElementById("demo").innerHTML = text;
}

function deletePrint (){
  document.getElementById("demo").innerHTML = "";
}