import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam3;

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

/**
 *
 * @author saad
 */
public class Codejam3 {

    /**
     * @param args the command line arguments
     */
    static int convert(Integer min,Integer max){
        int n=min.toString().length() ;
        int res=0 ;
        List<Integer> l=new LinkedList<Integer>() ;
       for(int i=min;i<max;i++){
           String fait=i+"" ;
           l.clear();
         for(int j=0;j<n-1;j++){
             
             String s="" ;
             for(int k=j+1;k<n+j+1;k++){
                 s+=fait.charAt(k%n) ;
             }
             int a=Integer.parseInt(s) ;
             if(a>i&&a<=max){
                 if(!l.contains(a)){
                     res++ ;
                     l.add(a) ;
                 }
                 
                 
             }
         }
    }
       return res ;
    }
  
    
    
    public static void main(String[] args) throws FileNotFoundException {
         Scanner in=new Scanner(new File("C-small-attempt1(1).in")) ;
        PrintWriter out=new PrintWriter("C-small-attempt1.out") ;
        int n=in.nextInt() ;
       
        for(int i=0;i<n;i++){
            out.print("Case #"+(i+1)+": "+convert(in.nextInt(), in.nextInt())) ;
            if(i!=n-1) out.println();
        }
        in.close();
       out.close();
       
    }
}
