function fizzBuzz(num) {
if ((num % 3 === 0) && (num % 5 === 0)) {
    return 'fizzbuzz';
}
 else if (num % 3 === 0) {
  return 'fizz';
}
  else if (num % 5 === 0) {
  return 'buzz';
}

  else {
      return num;
    }


// if num is divisible by 3 return 'fizz'
// if num is divisible by 5 return 'buzz'
// if num is divisible by 3 & 5 return 'fizzbuzz'
// otherwise return num
}