
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;
	}
	

}
package codejam.common;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author chenling
 */
public class FileUtil {

    public static List<String> readLines(String fileName) {
        List<String> result = new ArrayList<String>();
        FileReader in = null;
        try {
            in = new FileReader(fileName);
            BufferedReader reader = new BufferedReader(in);
            String line = null;
            while ((line = reader.readLine()) != null) {
                if (line.trim().length() > 0) {
                    result.add(line);
                }
            }
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return result;
    }

    public static void writeLines(String fileName, List<String> lines) {
        FileWriter writer = null;
        try {
            writer = new FileWriter(fileName);
            PrintWriter printWriter = new PrintWriter(writer);
            for (String line : lines) {
                printWriter.println(line);
            }
        } catch (IOException ex) {
            Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (writer != null) {
                try {
                    writer.close();
                } catch (IOException ex) {
                    Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
}
