
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;
import java.io.File;
import java.io.IOException;
import java.io.FileWriter;
import java.io.BufferedWriter;

public class Recycle
{
	public static void main(String[] args)
	{
/*		Set<Integer> perms = getPermutations(123456);
		
		for(Integer i: perms)
			System.out.println(i);*/
	
		try
		{
			Scanner s = new Scanner(new File("recycle.in"));
			BufferedWriter w = new BufferedWriter(new FileWriter(new File("recycle.out")));
			int numCases = s.nextInt();
			s.nextLine();
			
			for(int n = 1;n <= numCases; n++)
			{
				int A = s.nextInt();
				int B = s.nextInt();
				int count = 0;
				for(int k = A; k <= B; k++)
				{
					count += getNumPairs(k, B);
				}
				
				w.write("Case #" + n + ": " + count + "\n");
			}
			
			w.flush();
			w.close();
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}
	}
	
	public static int getNumPairs(int n, int B)
	{
		Set<Integer> possibles = getPermutations(n);
		int count = 0;
		for(Integer i : possibles)
			if(i > n && i <= B)
				count++;
		return count;
	}
	
	public static Set<Integer> getPermutations(int n)
	{
		Set<Integer> perms = new TreeSet<Integer>();
		char[] digits = String.valueOf(n).toCharArray();
		
		for(int firstPos = 1; firstPos < digits.length; firstPos++)
		{
			String toBuild = "";
			for(int k = 0; k < digits.length; k++)
				toBuild += digits[(firstPos + k) % digits.length];
			perms.add(Integer.parseInt(toBuild));
		}
		return perms;
	}
	

}
import java.io.*;
import java.util.*;

public class test3
{

	public static void main(String[] args) throws Exception
	{
		new test3().run();
	}

	PrintWriter out = null;

	int getCount(int d, int max)
	{
		String s = Integer.toString(d);
		int n = s.length();

		HashSet<Integer> hs = new HashSet<Integer>();
		for (int i = 1; i < n; i++)
		{
			StringBuffer sb = new StringBuffer();
			sb.append(s.substring(n - i, n));
			sb.append(s.substring(0, n - i));

			int b = Integer.parseInt(sb.toString());

			if (b > d && b <= max)
				hs.add(b);
		}

		return hs.size();
	}

	void run() throws Exception
	{
		Scanner in = new Scanner(System.in);
		out = new PrintWriter(new FileWriter("codejam.txt"));

		int T = in.nextInt();
		for (int i = 0; i < T; i++)
		{
			int A = in.nextInt();
			int B = in.nextInt();
			int total = 0;
			for (int j = A; j <= B; j++)
				total += getCount(j, B);

			out.printf("Case #%d: %d\n", i + 1, total);
		}
		out.close();
	}
}
