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

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.*;
import java.util.StringTokenizer;
import java.util.Hashtable;

/**
 * Created by IntelliJ IDEA.
 * User: marcus
 * Date: 4/14/12
 * Time: 1:57 PM
 * To change this template use File | Settings | File Templates.
 */
public class RecycledNumbers {
    
    public static void main(String a[]) throws IOException {


        FileInputStream fInputstream = null;
        try {
            fInputstream = new FileInputStream("C-small.in");
        } catch (FileNotFoundException e) {
            //e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
        DataInputStream in = new DataInputStream(fInputstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String strLine;

        FileWriter fstream = new FileWriter("C-small.out");
        BufferedWriter out = new BufferedWriter(fstream);

        String strT = null;
        strT = br.readLine();

        int T =  Integer.parseInt(strT);
        for(int d = 1; d <= T; d++)  {

            String testCase =  br.readLine();
            StringTokenizer st = new StringTokenizer(testCase, " ");

            int A = Integer.parseInt(st.nextToken());
            int B = Integer.parseInt(st.nextToken());

            int dev = 0;
            int base = 10;
            while ( dev == 0){
                if(A < base){
                    dev = base /10;
                } else
                    base *= 10;
            }

            int count = 0;
            Hashtable <String, Integer> table = new Hashtable <String, Integer>();

            for(int i = A; i <= B; i++){
                //System.out.println("i :" + i);
                int mul = 10;
                for(int j = dev; j > 1 ; j/= 10, mul *= 10){
                    //System.out.println("J :" + j);
                    int val = i / j;

                    int rem = i % j;
                    int recycledHalf = (rem * mul) + val;
                    //System.out.println("recycledHalf :" + recycledHalf);





                    if(A <= i && i < recycledHalf && recycledHalf <= B ) {
                        System.out.println(A + " <= " + i + " < " + recycledHalf + " <= " + B);
                        String s = String.valueOf(i) + "," + String.valueOf(recycledHalf);
                        //System.out.println( s );
                        table.put(s, new Integer(0));

                    }


                }

            }
            count = table.size();
            //System.out.println("Dev :" + dev);
            //System.out.println("Count :" + count);
            out.write("Case #" + d + ": " + count + "\n");

        }

        in.close();
        out.close();
    }
}
