URL: https://media.istockphoto.com/vectors/mega-sale-40-percent-discount-special-offer-background-with-flying-vector-id1311073387?k=20&m=1311073387&s=612x612&w=0&h=WTRFI5ne4rtZc9VF5c4rEWUnqiJXo7KRpaKKRlQmO1M=
URL2: https://www.istockphoto.com/jp/イラスト/数字の40
