text: //Exercise 10
  var card1 = parseInt(prompt("Pick a card! 1-13"));
  var card2 = parseInt(prompt("Pick another card!"));
  var card3 = parseInt(prompt("Pick a third card!"));
  
  if ((card1 + card2 + card3) === 21)
  {
      alert("BLACKJACK!")
  }
  else if ((card1 + card2 + card3) > 21)
  {
      alert("BUST!")
  }
  else if ((card1 + card2 + card3) < 21)
  {
      alert("The sum is: " + (card1 + card2 + card3));
  }
  
  
  //Exercise 11
  var userGrade = parseInt(prompt("Enter your grade."));
  if (userGrade >= 90 && userGrade <= 100)
  {
      alert("Your grade is A")
  }
  else if (userGrade >= 80 && userGrade <= 89)
  {
      alert("Your grade is B")
  }
  else if (userGrade >= 70 && userGrade <= 79)
  {
      alert("Your grade is C")
  }
  else if (userGrade >= 60 && userGrade <= 69)
  {
      alert("Your grade is D")
  }
  else if (userGrade >= 0 && userGrade <= 59)
  {
      alert("Your grade is F")
  }
  else
  {
      alert("ERROR")
  }
  
  
  //Exercise 12
  var userAge = parseInt(prompt("Please enter your age."));
  if (userAge >= 0 && userAge <= 125)
  {
      alert("REAL AGE")
  }
  else
  {
      alert("NOT REAL AGE!!!")
  }