/*
 * 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.util.*;
import java.lang.*;
import java.io.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
public class main {

	/**
	 * @param args
	 */
	public static String lireString() // lecture d'une chaine
	{
		String ligne_lue = null;
		try {
			InputStreamReader lecteur = new InputStreamReader(System.in);
			BufferedReader entree = new BufferedReader(lecteur);
			ligne_lue = entree.readLine();
		} catch (IOException err) {
			System.exit(0);
		}
		return ligne_lue;
	}
	
	public static Scanner s =new Scanner(System.in);
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		System.out.println("Input");
	
	String filename = "C:\\A-small-attempt1.in";
	String ligne = "";
	int nbrLigne = 0, i=0, j=0,rech=0;
	char cchar=' ';
	File f = new File(filename);
	if (f.exists()) {
		System.out.println("File exists");
	} else {
		System.out.println("File does not exist");
	}
	
String aa="ejpmyslckdxvnribtahwfougqz ";
String bb="ourlangeismpbtdhwyxfckjvzq ";
String  g="";

	try {
		FileInputStream fStream = new FileInputStream(filename);
		BufferedReader in = new BufferedReader(new InputStreamReader(
				fStream));
		if (in.ready()) {
			ligne = in.readLine();
			nbrLigne = Integer.parseInt(ligne);
			String res[]=new String[nbrLigne];
			for (j = 0; j < nbrLigne; j++) {
				ligne = in.readLine();
				
				for (i = 0; i < ligne.length(); i++) {
						g+=bb.charAt(aa.indexOf(ligne.charAt(i)));
					}
				System.out.println("Case #"+(j+1)+": "+g);
				g="";
			}
		}
	}catch (IOException e) {
		System.out.println("File input error");
	}
	}
}
