package main

import "golang.org/x/tour/pic"

func Pic(dx, dy int) [][]uint8 {
	// make vertical container
	pic := make([][]uint8, dy)

	// make horizontal container
	for y, _ := range pic {
		pic[y] = make([]uint8, dx)
		for x, _ := range pic[y] {
			pic[y][x] = uint8(x*y)
		}
	}
	return pic
}

func main() {
	pic.Show(Pic)
}