import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.StringTokenizer;


public class G2 
{
	 private Scanner reader;
	 private FileWriter fstream;
	 private BufferedWriter out;
	 String nextline;
	 int noLines;
	 int intA;
	 int intB;
	 int lineIndex=1;
	 int value=0;
	 
	 
	 public boolean isValid(int n,int m)
	 {
		 return (!(n==m)&&(intA<=n)&&(n<m)&&(m<=intB));
		 	
	 }
	 public void initiateFiles()
	{
			try 
			{
				
				reader = new Scanner(new File("src/resources/inb.in"));
				String nextline = reader.nextLine();
				noLines = new Integer(nextline);
				System.out.println(noLines);
				fstream = new FileWriter("out.txt");
				out = new BufferedWriter(fstream);
				
				process();
				out.close();
				
			}
			catch (Exception e) {
				// TODO: handle exception
			}
	}
	 public void process() throws IOException
	 {
		 while (reader.hasNext()) 
		{
			 	value=0;
			 	nextline = reader.nextLine();
			 	System.out.println("Case #"+(lineIndex)+": ");
	            out.write("Case #"+(lineIndex++)+": ");
	            StringTokenizer allwords = new StringTokenizer(nextline);
	            intA= new Integer(allwords.nextToken());
	            intB= new Integer(allwords.nextToken());
	            System.out.println(intA+"    "+intB);
	            
	            int n,m=0;
	            for(n=intA;n<=intB;n++)
	            {
	            	System.out.println(n+"    "+m);
	            	String ns=""+n;
	            	
	            	for(int i=1;i<=ns.length();i++)
	            	{
	            		//System.out.println(i);
	            		String S2=ns.substring(ns.length()-i);
	            		
	            		if(S2.charAt(0)=='0')
	            			continue;
	            		String S1=ns.substring(0,ns.length()-i);
	            		
	            		String ms=S2+S1;
	            		m=new Integer(ms);
	            		//System.out.println(isValid(n, m));
	            		if(isValid(n, m))
	            		{
	            			value++;
	            		}
	            		
	            	}
	            }
	            out.write(value+"\n");
	            

	       }
	 }
	 
	public static void main(String []args)
	{
		G2 obj=new G2();
		obj.initiateFiles();
		
		
		
	}

}
