/*
 * 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;
        } 
    
}


import java.io.*;
import java.util.*;
public class Cre
{
 public static void main(String args[])throws FileNotFoundException,IOException
  {
      RandomAccessFile in=new RandomAccessFile("C-small-attempt0.in","r");
      FileOutputStream out= new  FileOutputStream("out.txt");
     int o=Integer.parseInt(in.readLine());
      int j=0;
     String str[]=new String[o+1];
     int res[]=new int[o];
     while((str[j]=in.readLine())!=null)
     {
       String []nos=str[j].split(" ");
       int a=Integer.parseInt(nos[0]);
       int b=Integer.parseInt(nos[1]);
       int []t=new int[b-a+1];
	    int m;
       for(int i=a,k=0;i<=b;i++,k++)t[k]=i;
       for(int i=0;i<t.length;i++)
       {
	     
		  
           String st=t[i]+"";
		   char ch[]=st.toCharArray();
		   ArrayList got=new ArrayList();
		   int g;
           for(int c=0;c<ch.length;c++)
		    { 
			   m=shift(ch);
			    int flag=1;
			   Iterator it=got.iterator();
			   while(it.hasNext())
			   {  
			    Integer inf=(Integer)it.next();
			     g=inf.intValue();
				 if(g==m) flag=0;
			   }
			   
			     if(m!=t[i]&&flag==1)
          {
		  got.add(m);
           for(int l=i+1;l<t.length;l++)
           {
              if(m==t[l])
              {
			     System.out.println(t[i]);
                    res[j]++;
                    
              }
           }
		   
          }
		  
            }
		  
       
		 
        }
      j++;
     }
     for(int i=0;i<o;i++)
    {
     out.write(("Case #"+(i+1)+": "+res[i]+"\n").getBytes());
    }
   }
   
   static int shift(char[] ch)
   {
     char temp=ch[ch.length-1];
     for(int i=ch.length-1;i>0;i--)
	  {
	    ch[i]=ch[i-1];
	  }
	  ch[0]=temp;
	  String st=new String(ch);
	  return Integer.parseInt(st);
   }

}