import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
package qualification2012;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.StringTokenizer;

public class C {

	private final String f = "src\\qualification2012\\C-large";
	private BufferedReader in;
	private PrintWriter out;
	private StringTokenizer token;
		

	
	private C() throws IOException {
		in = new BufferedReader(new FileReader(f+".in"));
		out = new PrintWriter(f + ".out");
		eat("");

		int t = nextInt();
		for (int i = 1; i <= t; i++) {
			write("Case #"+i+": ");
			solve();
		}
		
		in.close();
		out.close();
	}
	
	private void solve() throws IOException {	
		int a = nextInt();
		int b = nextInt();
		if (a < 10){
			write(0 + "\n");
			return;
		}
		
		int pair = 0;
		for (int i = a; i <= b; i++) {
			char[] digits = Integer.toString(i).toCharArray();
			char[] tmp = new char[digits.length];
			
			ArrayList<Integer> al = new ArrayList<>();
			for (int start = 1; start < digits.length; start++) {
				int number = 0;
				
				for(int x = 0; x + 1 < digits.length; x++) {
					tmp[x] = digits[x + 1];
					number += Math.pow(10, (digits.length - x - 1)) * (digits[x + 1] - '0');
				}
				tmp[digits.length - 1] = digits[0];
				number += digits[0] - '0';
				digits = tmp.clone();
				
				if (number >= a && number <= b && i > number) {
					if(!al.contains(number)) {
						al.add(number);
						pair++;
					}
				}
			}
		}
			
		write(pair + "\n");	
	}

	private String nextLine() throws IOException {
		return in.readLine();
	}
	
	private String next() throws IOException {
		while (!token.hasMoreTokens()) {
			String line = in.readLine();
			if (line == null) {
				return null;
			}
			eat(line);
		}
		return token.nextToken();
	}
		
	private int nextInt() throws IOException {
		return Integer.parseInt(next());
	}
	
	private long nextLong() throws IOException {
		return  Long.parseLong(next());
	}
	
	private void eat(String s) {
		token = new StringTokenizer(s);
	}

	private void write(String s) {
		System.out.print(s);
		out.print(s);
	}
	
	public static void main(String[] args) {
		try {
			new C();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

