Wolf Grey was renovating his house, originally planning to use 128 large square tiles to cover the entire floor. Just when he was halfway through the construction, Wolf Grey changed his plan, deciding to use small square tiles for the remaining floor. If the side length of the small tiles is 60% smaller than that of the large tiles, at least small tiles are needed. (Tiles can be cut)
A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.