A cone-shaped vase has height 23 cm and radius 9 cm. An artist wants to fill the vase with colored sand. The sand comes in small packages, each of which is a cube with side length 3 cm. At most how many packages of sand can the artist use without making the vase overflow? Use 3.14 for I. The artist can use at most packages without making the vase overflow. (Round down to the nearest whole number.)