import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.logging.Level;
import java.util.logging.Logger;

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

/**
 *
 * @author B4dT0bi
 */
public class RecycledNumbers
{

    public static String [] input;
    public static String wholeOutput="";
    public static void readInput(String inputFile)
    {
        BufferedReader br = null;
        try
        {
            br = new BufferedReader(new FileReader(inputFile));
            String serializedSettings = "";
            String line = null;
            while ((line = br.readLine()) != null)
                serializedSettings += line + "\n";
            input=serializedSettings.split("\n");
            br.close();
        } catch (Exception ex)
        {
            ex.printStackTrace();
        } finally
        {
            try
            {
                br.close();
            } catch (IOException ex)
            {
                ex.printStackTrace();
            }
        }
    }
    public static void writeOutput(String inputFile)
    {
        try
        {
            BufferedWriter out = new BufferedWriter(new FileWriter(inputFile+".out"));
            out.write(wholeOutput);
            out.close();
        } catch (IOException e)
        {
            e.printStackTrace();
        }

    }
    public static void main(String[] args)
    {
        readInput(args[0]);
        wholeOutput="";
        for(int i=1;i<input.length;i++)
        {
            String [] tmp=input[i].split(" ");
            int A=Integer.parseInt(tmp[0]);
            int B=Integer.parseInt(tmp[1]);
            int anz=0;
            for(int x=A;x<B-1;x++)
            {
                anz+=existingPairs(x, B);
            }
            wholeOutput+="Case #"+i+": "+anz+"\n";
        }
        writeOutput(args[0]);
        
    }
    private static int existingPairs(int x, int B)
    {
        String sX=""+x;
        int anz=0;
        HashSet<String>already=new HashSet<String>();
        for(int i=1;i<sX.length();i++)
        {
            String tmp=sX.substring(sX.length()-i)+""+sX.substring(0,sX.length()-i);
            if(tmp.charAt(0)=='0')continue;
            int nr=Integer.parseInt(tmp);
            if(nr<=B && nr>x)
            {
                if(!already.contains(tmp))
                {
                    already.add(tmp);
                    anz++;
                }
            }
        }
        return anz;
    }    
}
