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 qualification.problemC;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;

public class ProblemC {

	static int num;
	static String[] lines;

	static String dir = "./src/qualification/problemC";
	static String inTxt = dir + "/C-large.in";
	static String outTxt = dir + "/C-large.out";

	public static void main(String[] args) {
		input(inTxt);
		String[] ansStrs = new String[num];
		for (int i = 0; i < lines.length; i++) {
			String[] strs = lines[i].split("\\s");
			int[] nums = new int[strs.length];
			for (int j = 0; j < strs.length; j++) {
				nums[j] = Integer.valueOf(strs[j]);
			}
			// Solve Problem
			int ans = solve(nums[0], nums[1]);
			ansStrs[i] = String.valueOf(ans);
		}
		output(outTxt, ansStrs);
	}

	static void input(String fname) {
		try {
			BufferedReader br = new BufferedReader(
					new InputStreamReader(
							new FileInputStream(fname)));
			String line = br.readLine();
			num = Integer.valueOf(line);
			System.out.println(num);
			lines = new String[num];
			for (int i = 0; i < num; i++) {
				lines[i] = br.readLine();
				System.out.println(lines[i]);
			}
			br.close();
		} catch (Exception e) {
			e.printStackTrace();
		}

	}
	static void output(String fname, String[] output) {
		File outFile = new File(fname);
		try {
			FileWriter fw = new FileWriter(outFile);
			for (int i = 0; i < num && i < output.length; i++) {
				String out = "Case #"+(i+1)+ ": " + output[i] + '\n';
				System.out.print(out);
				fw.write(out);
				fw.flush();
			}
			fw.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static int solve(int min, int max) {
		int count = 0;
		char maxFirst = String.valueOf(max).charAt(0);
		for (int i = Math.max(10, min); i < max; i++) {
			String num = String.valueOf(i);
			char first = num.charAt(0);
			Set<Integer> set = new HashSet<Integer>();
			for (int j = 1; j < num.length(); j++) {
				char newFirst = num.charAt(j);
				if (newFirst < first || maxFirst < newFirst)
					continue;
				String tmp = num.substring(0, j);
				int newNum = Integer.valueOf(num.substring(j) + tmp);
				if (i < newNum && newNum <= max) {
					//System.out.println(num + ", " + newNum);
					set.add(newNum);
				}
			}
			count += set.size();
		}
		return count;
	}
}
