/*
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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 CodeJamC {
	public static void main (String[] args) throws IOException {
		int i, j, k;
		long startTime = System.currentTimeMillis();
		File inFile  = new File("C-small-attempt0.in");  // File to read from
		File outFile = new File("C-small.out");
		
		BufferedReader reader = new BufferedReader(new FileReader(inFile));
		BufferedWriter writer = new BufferedWriter(new FileWriter(outFile));
	
			
		String line = null;
		line = reader.readLine();
		int cases = Integer.parseInt(line);
		int counter = 1;
		
        while ((line=reader.readLine()) != null) {
        	int A,B;
        	int pairs = 0;
        	
        	String[] node = line.split(" ");
        	A = Integer.parseInt(node[0]);
        	B = Integer.parseInt(node[1]);
        	        
        	if ((node[0].length() == 1) || (A == B)) {
        		;
        	} else if (node[0].length() == 2) {
        		for(i = A; i <= B; i++) {
        			int oneth = i % 10;
        			int tenth = i /10;
        			int newNum = oneth*10+tenth; 
        			if(newNum > i && newNum <= B)
        				pairs++;
        		}
        	} else if (node[0].length() == 3) {
        		for(i = A; i <= B; i++) {
        			int oneth = i % 10;
        			int tenth = (i /10) % 10;
        			int hunth = i /100;
        			int newNum1 = oneth*100+hunth*10+tenth;
        			int newNum2 = tenth*100+oneth*10+hunth;
        			if(newNum1 > i && newNum1 <= B)
        				pairs++;
        			if(newNum2 > i && newNum2 <= B)
        				pairs++;
        		}
        	}
        	
        	//System.out.println("Case #"+counter+": "+pairs);
        	writer.write("Case #"+counter+": "+pairs);        	
        	writer.newLine();
        	counter++;        		
        }
        
        writer.close();       
        long endTime   = System.currentTimeMillis();
        long totalTime = endTime - startTime;
        System.out.println("Total Time: " + totalTime);		
	}
 }
