import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

package com.codejam2012;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class FileUtils {
	
	
	public static String readFile(String fileName){
		FileReader reader = null;
		String temp = null;
		try {
			reader = new FileReader(fileName);
		} catch (FileNotFoundException e1) {
			e1.printStackTrace();
		}
	    StringBuffer strContent = new StringBuffer("");
	    
	    try 
	    {
	      
	      BufferedReader bufferedReader = new BufferedReader(reader);
	      temp =bufferedReader.readLine();
	      while (temp != null)
	      {		    	  
	    	  strContent.append(temp + "\n");
	    	  temp =bufferedReader.readLine();
	      }
	      
	    } 
	    catch (Exception e) 
	    {
	      System.out.println(e);
	    }
	    
	    return strContent.toString();
	}

	public static void appendToFile(String outputFileName, String dataToPrint) {
						 
		File file =new File(outputFileName);
		if(!file.exists()){
			try {
				file.createNewFile();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		
		FileWriter fileWritter;
		try {
			fileWritter = new FileWriter(outputFileName,true);
			BufferedWriter bufferWritter = new BufferedWriter(fileWritter);
	        bufferWritter.write(dataToPrint);
	        bufferWritter.close();
	        fileWritter.close();
	        
		} catch (IOException e) {
			e.printStackTrace();
		}
	        
		
		
	}

	public static void deleteFile(String outputFileName) {
		File file =new File(outputFileName);
		if(file.exists()){
			file.delete();
		}
		
	}
	

}
