package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}


import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Akash Agrawal
 */
public class RN {
    
    public static boolean check(int n , int []arr)
    {
        for(int i=0;i<arr.length;i++)
        {
            if(n==arr[i])return false;
        }
        return true;
    }
    
    public static void main(String [] args) throws FileNotFoundException, IOException
    {
        Scanner scan= new Scanner(new File("Input.in"));
        int n=scan.nextInt();
        int cas=1;
        while(n--!=0)
        {
            String s1 = scan.next() , s2 = scan.next();
            int A=Integer.parseInt(s1);
            int B=Integer.parseInt(s2);
            //System.out.println(A+B);
            int count = 0;
            
            for(int i=A;i<B;i++)
            {//System.out.println(i);
                String temp = Integer.toString(i);
                int ar[] = new int[s1.length()-1];
                int ind=0;
                for(int a=0;a<ar.length;a++)
                {
                    ar[a]=-1;
                }
                for(int j=1;j<s1.length();j++)
                {
                    
                    String temps = temp.substring(j) + temp.substring(0,j);
                    int C=Integer.parseInt(temps);
                    //System.out.println(s1.substring(0,j));
                    if(C>i && C<=B && check(C,ar))
                       {
                           count++;
                           //System.out.println(i+" "+C);
                           ar[ind++]=C;
                       }
                    
                }
                
                
            }
            System.out.println("Case #"+cas+++": "+count);
            
        }
        
    }
    
}
