function FizzBuzz(num){

    for(var i = 0; i<=num; i++){
      if(i % 15 ===0)console.log("FizzBuzz");
      else if(i % 3 ===0)console.log("Fizz");
      else if(i % 5 ===0)console.log("Buzz");
      else console.log(i);
    }
  }

  FizzBuzz(20);