/*
 * 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;
        } 
    
}


package codejam;
import java.io.*;
import java.util.*;

public class RecycledNumbers {

	public static void RecycledNumbersProcess() throws Exception
	{
	
		int t_cases= getT();
		for(int i = 1; i<=t_cases;i++)
		{
				String line = getG();
				long A, B;
				String[] charNUMBERS = line.split(" ");
						
				A = Long.parseLong(charNUMBERS[0]);
				B = Long.parseLong(charNUMBERS[1]);
	
				//Check no of digits
				int NoOfDigits = charNUMBERS[0].length();
				
				HashSet hsUnique = new HashSet();
				hsUnique.clear();
				
				long OutputCount;
				OutputCount = 0;
				
				for(long j=A; j<=B; j++)
				{
				
					long tempA = j;
							
					for(int k = 0; k<NoOfDigits-1; k++)
					{
						long Rem = tempA%10;
						long newA = tempA/10;
						newA = newA + Rem*new Double(Math.pow(10,NoOfDigits-1)).longValue();

						tempA = newA;
						
						//Check for satisfying condition
						if(newA > j && newA >= A && newA <= B)
						{
							OutputCount++;
							
							String jStr = String.valueOf(j);
							String newAStr = String.valueOf(newA);
							
							String pair = jStr + newAStr;

							hsUnique.add(pair);
						}
					}//for loop k
				}//for loop j
			
		
				//System.out.print("Case #" + i + ": " + hsUnique.size()+"\n");
				out.write("Case #" + i + ": " + hsUnique.size()+"\n");
				
				hsUnique = null;

		}
		
	}
	
	public static BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
	public static File input;
	public static FileReader inputreader;
	public static BufferedReader in;
	public static File output;
	public static FileWriter outputwriter;
	public static BufferedWriter out;
	public static StringTokenizer st;
	
	public static void main(String[] args) throws Exception {
		
		input = new File("smallinputRN.in.txt");
		inputreader = new FileReader(input);
		in = new BufferedReader(inputreader);
		output = new File("smalloutputRN.out.txt");
		outputwriter = new FileWriter(output);
		out = new BufferedWriter(outputwriter);
		RecycledNumbersProcess();
		close();
	}
	
	
	public static void close() throws IOException {
		if(in!=null)in.close();
		if(inputreader!=null)inputreader.close();
		if(out!=null)out.flush();
		if(out!=null)out.close();
		if(outputwriter!=null)outputwriter.close();
	}
	
	// ************************** INPUT READING *****************
	static String LINE() throws IOException { return in.readLine();}
	static int getT() throws IOException {return Integer.parseInt(LINE());}
	static String getG() throws IOException {return LINE();}
	
}


