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 * 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 RecycledNumbers {
    
    private ArrayList<Integer> input = new ArrayList<Integer>();
    public static void main(String argz[]) throws IOException{
        RecycledNumbers r = new RecycledNumbers();
        r.readInput();
        r.generateAndCheck();
    }
    
    public void generateAndCheck(){
        int caseNo = 0;
        for(int i = 0; i < input.size(); i += 2){
            int count = 0;
            int A = input.get(i);
            int B = input.get(i + 1);
            for(int n = A; n <= B; n++){
                for(int m = n + 1; m <= B; m++){
                    if(check(n, m)) count++;
                }
            }
            System.out.print("Case #" + (++caseNo) + ": ");
            System.out.println(count);
        }
    }
    
    public boolean check(int n, int m){
        StringBuilder N = new StringBuilder(String.valueOf(n));
        do{
            N.insert(0, N.charAt(N.length() - 1));
            N.deleteCharAt(N.length() - 1);
            if(Integer.parseInt(N.toString()) == m){
                return true;
            }
        } while(Integer.parseInt(N.toString()) != n);
        
        return false;
    }
    
    private void readInput() throws IOException{
        FileReader file = new FileReader("in.in");
        try {
            Scanner reader = new Scanner(file);
            int testCases = reader.nextInt();
            while (testCases > 0){
                input.add(reader.nextInt());
				input.add(reader.nextInt());
                testCases--;
            }         
        } catch (Exception e){
            System.err.println("Error: " + e.getMessage());
        }
    }
}