import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package c;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author mrzk
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args)
    {
        try
        {
            Scanner inp = new Scanner(new File("mm.in"));
            FileWriter fw=new FileWriter(new File("mm.out"));
            String line=inp.nextLine();
            int cnt=Integer.valueOf(line);
            int a=0,b=0;
            for (int i = 0; i < cnt; i++)
            {
                line=inp.nextLine();
                int pos=line.indexOf(' ');
                String temp=line.substring(0, pos);
                a=Integer.valueOf(temp);
                temp=line.substring(pos+1, line.length());
                b=Integer.valueOf(temp);
                int cntrclc=countRecycledNumbers(a, b);
                fw.write("Case #"+String.valueOf(i+1)+": "+String.valueOf(cntrclc)+"\n");
            }
            fw.close();
            inp.close();
        }
        catch (Exception ex)
        {
        }
    }

    private static int countRecycledNumbers(int a,int b)
    {
        int cnt=0;
        for(int num=a;num<=b;num++)
        {
            int len=((int) Math.log10(num))+1;
            for (int i = 0; i < len; i++)
            {
                int temp=num;
                temp=(int) ((temp % Math.pow(10, i)) * Math.pow(10, len - i) + (temp / Math.pow(10, i)));
                if((temp>=a)&&(temp<=b)&&(temp>num))
                    cnt++;
            }
        }
        return cnt;
    }
}