
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.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;


public class RecycledNumbersSolver {
	public static void main(String[] args) {
		try {
			FileInputStream fIS = new FileInputStream(args[0]);
			BufferedReader r = new BufferedReader(new InputStreamReader(fIS));
			
			int t = Integer.parseInt(r.readLine());
			for (int i=0;i<t;++i) {
				System.out.print("Case #" + (i+1) + ": ");
				if (i < t-1)
					System.out.println(solveTest(r.readLine()));
				else
					System.out.print(solveTest(r.readLine()));
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}			
	}

	private static int solveTest(String line) {
		Map<Integer, List<Integer>> matches = new HashMap<Integer, List<Integer>>();
		
		String[] nums = line.split(" ");
		int a = Integer.parseInt(nums[0]);
		int b = Integer.parseInt(nums[1]);
		Integer bInt = b;
		
		int result = 0;
		
		for (int i=a;i<b;++i) {
			result += solveTest(i, bInt, matches);
		}
		
		return result;
	}

	private static int solveTest(Integer n, Integer max, Map<Integer, List<Integer>> matches) {
		String txt = n.toString();
		int digits = txt.length();
		
		int counter = 0;
		
		for (int i=1;i<digits;++i) {
			Integer nNum = getRecycled(txt, i);
			if (nNum.compareTo(n) > 0 && nNum.compareTo(max) <= 0) {
				if (matches.get(n) == null)
					matches.put(n, new LinkedList<Integer>());
				
				List<Integer> list = matches.get(n);
				if (!list.contains(nNum)) {
					list.add(nNum);
					++counter;
				}
			}
		}
		
		return counter;
	}

	private static Integer getRecycled(String txt, int shift) {
		StringBuilder bld = new StringBuilder();
		
		for (int i=txt.length()-shift;i<txt.length();++i)
			bld.append(txt.substring(i, i+1));
		
		for (int i=0;i<txt.length()-shift;++i)
			bld.append(txt.substring(i, i+1));
		
		return Integer.parseInt(bld.toString());
	}
}
