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

public class codejam1{

    public static void main(String [] args){
        HashMap<Integer, Integer> permuToPairs = new HashMap<Integer, Integer>();
        permuToPairs.put(1,0);
        permuToPairs.put(2,1);
        permuToPairs.put(3,3);
        permuToPairs.put(4,6);
        permuToPairs.put(5,10);
        permuToPairs.put(6,15);
        permuToPairs.put(7,21);
        //System.out.println(findRecycle(1111, 2222,permuToPairs));
        int count = 1;
        try{
            Scanner sc = new Scanner(new File("C-small-attempt0.in"));
            PrintStream ps = new PrintStream(new File("OutputFile"));
            sc.nextLine();
            while (sc.hasNextLine()){
                String line  = sc.nextLine();
                String[] numbers = line.split(" ");
                long low = Long.parseLong(numbers[0]);
                long high = Long.parseLong(numbers[1]);
                
                String s = "Case #"+count+": " + findRecycle(low, high,permuToPairs);
                if(sc.hasNextLine()){
                    s +="\n";
                }
                ps.print(s);
                count ++;
            }
        }catch(Exception e){
            
        }
    }   
    
    public static long findRecycle(long low, long high, HashMap<Integer, Integer> permuToPairs){
        Set<Long> numberSet = new HashSet<Long>();
        String numberString = low+"";
        int numWidth = numberString.length();
        long count = 0;
        for(long i = low; i<= high; i++){
            if(!numberSet.contains(i)){
                numberSet.add(i);
                long permuNumber = i;
                int numPermus = 1;
                for(int j = 0; j < numWidth; j++){
                    // permute the number
                    permuNumber = permuNumber % 10* (int)Math.pow(10, numWidth-1)+permuNumber/10;
                    if(permuNumber >= low && permuNumber <= high && !numberSet.contains(permuNumber)){
                        numPermus++;
                        numberSet.add(permuNumber);
                    }
                }
                count += permuToPairs.get(numPermus);
            }
        }
        return count;
        
    }
}