/*
 * 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;
        } 
    
}


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


import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Hashtable;
import java.util.List;
import java.util.StringTokenizer;

/**
 *
 * @author a.sahito
 */
public class RotatoryNombers {
    static String strLine = null;
    static int result = 0;
    static int start = 0;
    static int end = 0;
    
    private static boolean is_recycle_number(int d, int d1)
        {
            int len =   Integer.toString(d).length() - 1;
            //bool b = false;
            for (int i = String.valueOf(d).length() - 1; i >= 0; i--)
            {
                int r = d%10;
                d /= 10;
                d = (int) (r*( Math.pow(10,len)) + d);
                if (d == d1)
                {
                    return true;
                }
            }
            return false;

        }
      
  
 public static void main(String[] args) {
  
     try {
        
         FileInputStream fstream = new FileInputStream("final.in");
         DataInputStream in = new DataInputStream(fstream);
         BufferedReader br = new BufferedReader(new InputStreamReader(in));
         FileWriter ifstream = new FileWriter("final.txt");
         BufferedWriter out = new BufferedWriter(ifstream);

         int resultCounter = 1;
         int skip_value=0;       
                 
         while ((strLine = br.readLine()) != null) {
             if (skip_value < 1) {
                 skip_value ++;
                 continue;
             }
              result=0;           
             String[] record = new String[2];
             record=strLine.split(" ");
             start=  Integer.parseInt( record[0]);
             end=  Integer.parseInt( record[1]);
             
            // int count = 0;

                    for (int  i = start; i < end; i++)
                    {
                        for (int j = i+1; j <= end; j++)
                        {
                            if (is_recycle_number(i, j)) result++;
                        }
                    }  
             
             String output = "Case #" + resultCounter + ": " + result+"\n" ;
             System.out.println("Case #" + resultCounter + ": " + result);
             try {
                
                 out.write(output);
                

             } catch (Exception e) {
                 System.err.println("Error: " + e.getMessage());
             }
             
             resultCounter++;
         }
         
         in.close();
         out.close();
     } catch (Exception e) {// Catch exception if any
         System.err.println("Error: " + e.getMessage());
     }
     }
    
    
}
