function cutFruitPieces(fruit) {
  return fruit * 3;
}

function fruitProcessor(apples, oranges) {
  const applePieces = cutFruitPieces(apples);
  const orangePieces = cutFruitPieces(oranges);

  const juice = `Juice with ${applePieces} piece of apples and ${orangePieces} piece of oranges`;
  return juice;
}

console.log(fruitProcessor(2, 4));