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 br.com.problema.c;

import java.io.File;
import java.io.FileWriter;
import java.util.Scanner;

public class ProblemaC {
	static String caminho = "/home/mateus/";

	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(new File(caminho + "entrada.txt"));
		FileWriter writer = new FileWriter(new File("/home/mateus/saida.txt"), false);

		int cases = sc.nextInt();

		for (int i = 1; i <= cases; i++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int resposta = 0;
			for (int num = A; num <= B; num++) {
				resposta += new Numero(num).quantNumRecycled(B);
			}
			writer.append(criarCase(i, resposta + ""));
		}
		writer.flush();
		writer.close();

	}

	public static String criarCase(int i, String s) {
		return "Case #" + i + ": " + s + "\n";
	}
}
