import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

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

/**
 *
 * @author vhd
 */
import java.io.*;
import java.util.*;
import java.math.*;
public class NewClass {
    public static void main(String vhd[]) throws Exception
    {
       
      

      
     // FileInputStream fis = new FileInputStream ("jam.txt");
     // FileOutputStream out=new FileOutputStream("outt.txt");
     
        RandomAccessFile file = new RandomAccessFile("jam.txt", "rw");
        RandomAccessFile file1 = new RandomAccessFile("outt.txt", "rw");
        String t = file.readLine();
        int times= Integer.parseInt(t);

        
        
        for( int r= 1 ; r<= times ; r++)
        {
     
            StringTokenizer st= new StringTokenizer(file.readLine()); 
       
        int num1 = Integer.parseInt(st.nextToken());
        int num2=   Integer.parseInt(st.nextToken());
        
      char ch ;
      int count =0;
      //fis.read();
      Scanner sc = new Scanner (System.in);
      
      
      int main1 = num1;
      
      int main2= num2;
      int mid = (num1 + num2 )/2;
      int n,m;
     String s1 = (Integer.valueOf(num1)).toString();
     String s2 = (Integer.valueOf(num2)).toString();
    
     int temp[] = new int[100];
     
     int len1 = s1.length();
     int len2 = s2.length();
     int k =0,l =0, d=0;
     int arr[] = new int[100];
     int flag=1;
    // System.out.print(temp.length);
      for( int i = num1 ; i< num2 ; i++)
      {
          while(k<len1)
             {
                 n= i%10;
                 m= i/10;
                 arr[k]=n* (int)Math.pow(10.0, len1-1) +m;

                
                      
                 i= arr[k++];

             } k=0;
         
         while(k<len1)
         {
          
            if(i != arr[k] && arr[k]>i && arr[k]<=num2 && flag == 1)
              {
                  temp[d++]= arr[k];
                  count++;
                  
              } 
              else if (flag == 0)
              flag=1;
            
            
             for(int p=0 ; p<d; p++)
             {
                 if(arr[k+1]== temp [p])
                 {  System.out.print(temp[p]);
                     flag=0;
                 }
             }
             k++;
         }
         k=0;
          d=0;
      }
     
file1.write(("Case #"+r+": " +count+ "\n").getBytes());
               
        }
    }
}