import java.util.*;

class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int height = 10;
		List<Integer>[] colors = new ArrayList[height];

		for (int n = 0; n < colors.length; ++n) {
		    colors[n] = new ArrayList<Integer>();
		}
		colors[0].add(40);
		System.out.println("colors[0].get(0) = " + colors[0].get(0));
	}
}