package codejam;

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

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;

public class CodeJam
{
    private static BufferedReader reader;
    private static BufferedWriter writer;
    
    public static void main(String args[]) throws Exception
    {
        prepareFiles("C-small-attempt0");
        
        int T = Integer.parseInt(reader.readLine());
     
        for(int i = 0; i < T; i++)
        {
            String[] line = reader.readLine().split(" ");
            int A = Integer.parseInt(line[0]);
            int B = Integer.parseInt(line[1]);
            
            int l = String.valueOf(A).length();
            int recycled = 0;
            
            for(int n = A; n <= B; n++)
            {
                HashSet<Integer> checkedCycles = new HashSet<>();
                String recycledSequence = String.valueOf(n);
                
                for(int j = 1; j < l; j++)
                {
                    recycledSequence = recycle(recycledSequence);
                    
                    int recycledInt = Integer.valueOf(recycledSequence);
                    
                    if(checkedCycles.contains(recycledInt))
                    {
                        continue;
                    }
                    else
                    {
                        checkedCycles.add(recycledInt);
                    }
                        
                    if(n < recycledInt && recycledInt <= B)
                    {
                        recycled ++;
                    }
                }
            }
            
            print(getCase(i + 1));
            print(recycled);
            print("\n");
        }
        
        putAwayFiles();
    }
    
    private static String recycle(String sequence)
    {
        String newSequence = new String();
        
        newSequence += sequence.charAt(sequence.length() - 1);
        
        for(int i = 0; i < sequence.length() - 1; i++)
        {
            newSequence += sequence.charAt(i);
        }
        
        return newSequence;
    }
    
    private static void prepareFiles(String fileName) throws IOException
    {
        reader = new BufferedReader(new FileReader(new File(fileName + ".in")));
        writer = new BufferedWriter(new FileWriter(new File(fileName + ".out")));
    }
    
    private static void putAwayFiles() throws IOException
    {
        reader.close();
        writer.flush();
        writer.close();
    }
    
    private static String getCase(int i)
    {
        return "Case #" + i + ": ";
    }
    
    private static void print(Object object) throws IOException
    {
        System.out.print(object.toString());
        writer.write(object.toString());
    }
}


