/*
 * Problem C. Recycled Numbers
 * 
 * Do you ever become frustrated with television because you keep seeing the
 * same things, recycled over and over again? Well I personally don't care about
 * television, but I do sometimes feel that way about numbers.
 * 
 * Let's say a pair of distinct positive integers (n, m) is recycled if you can
 * obtain m by moving some digits from the back of n to the front without
 * changing their order. For example, (12345, 34512) is a recycled pair since
 * you can obtain 34512 by moving 345 from the end of 12345 to the front. Note
 * that n and m must have the same number of digits in order to be a recycled
 * pair. Neither n nor m can have leading zeros.
 * 
 * Given integers A and B with the same number of digits and no leading zeros,
 * how many distinct recycled pairs (n, m) are there with A â¤ n < m â¤ B?
 * 
 * Input
 * 
 * The first line of the input gives the number of test cases, T. T test cases
 * follow. Each test case consists of a single line containing the integers A
 * and B.
 * 
 * Output
 * 
 * For each test case, output one line containing "Case #x: y", where x is the
 * case number (starting from 1), and y is the number of recycled pairs (n, m)
 * with A â¤ n < m â¤ B.
 * 
 * Limits
 * 
 * 1 â¤ T â¤ 50.
 * 
 * A and B have the same number of digits.

Small dataset

1 â¤ A â¤ B â¤ 1000.

Large dataset

1 â¤ A â¤ B â¤ 2000000.

Sample


Input 
 	
Output 
 
4
1 9
10 40
100 500
1111 2222
Case #1: 0
Case #2: 3
Case #3: 156
Case #4: 287
 */

package google.codejam.y2012.qualifications;

import google.codejam.commons.Utils;

import java.io.IOException;
import java.util.StringTokenizer;

/**
 * @author Marco Lackovic <marco.lackovic@gmail.com>
 * @version 1.0, Apr 14, 2012
 */
public class RecycledNumbers {

	private static final String INPUT_FILE_NAME = "C-large.in";
	private static final String OUTPUT_FILE_NAME = "C-large.out";

	public static void main(String[] args) throws IOException {
		String[] input = Utils.readFromFile(INPUT_FILE_NAME);
		String[] output = new String[input.length];
		int x = 0;
		for (String line : input) {
			StringTokenizer st = new StringTokenizer(line);
			int a = Integer.valueOf(st.nextToken());
			int b = Integer.valueOf(st.nextToken());
			System.out.println("Computing case #" + (x + 1));
			output[x++] = "Case #" + x + ": " + recycledNumbers(a, b);
		}
		Utils.writeToFile(output, OUTPUT_FILE_NAME);
	}

	private static int recycledNumbers(int a, int b) {
		int count = 0;
		for (int n = a; n < b; n++) {
			count += getNumGreaterRotations(n, b);
		}
		return count;
	}

	private static int getNumGreaterRotations(int n, int b) {
		int count = 0;
		char[] chars = Integer.toString(n).toCharArray();
		for (int i = 0; i < chars.length; i++) {
			chars = rotateRight(chars);
			if (chars[0] != '0') {
				int m = Integer.valueOf(new String(chars));
				if (n == m) {
					break;
				} else if (n < m && m <= b) {
					count++;
				}
			}
		}
		return count;
	}

	private static char[] rotateRight(char[] chars) {
		char last = chars[chars.length - 1];
		for (int i = chars.length - 2; i >= 0; i--) {
			chars[i + 1] = chars[i];
		}
		chars[0] = last;
		return chars;
	}

}

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;


public class recycled {
	
	static HashMap<Long, HashMap<Long, Integer>> found;
	static Set<Long> touched;
	
	public static int calc(long a, long b){
		int compteur = 0;
		int nbchiffres = 1;
		long pow = 10;
		while(pow<a){
			pow=pow*10;
			nbchiffres++;
		}
		for(long n=a; n<=b; n++){
			if(n>pow){
				pow=pow*10;
				nbchiffres++;
			}
			//System.out.println(n+" "+a+" "+b);
			compteur+= nbpossibleM(a,b,n, nbchiffres, pow);
		}
		return compteur;
	}

	private static int nbpossibleM(long a, long b, long n, int nbchiffre, long pow) {
		long smallpow = 10;
		long bigpow = pow/10;
		//System.out.println("-------- "+nbchiffre+" "+smallpow+" "+bigpow+"\n\n\n");
		long m=0;
		int possibilities =0;
		touched.clear();
		for(int k=1; k<nbchiffre; k++){
			m= n/smallpow + (n%smallpow)*bigpow;
			if(m<n && m>=a && !touched.contains(m)){
				/*if(found.containsKey(m)){
					HashMap<Long, Integer> map = found.get(m);
					if(map.containsKey(n)){
						map.put(n, map.get(n)+1);
					}
					else{
						map.put(n, 1);
					}
				}
				else{
					HashMap<Long,Integer> map = new HashMap<Long, Integer>();
					map.put(n, 1);
					found.put(m, map);
				}*/
				possibilities++;
				touched.add(m);
			}
			smallpow=smallpow*10;
			bigpow=bigpow/10;
		}
		return possibilities;
	}
	
	public static void main(String[] args) throws FileNotFoundException{
		//found = new HashMap<Long	, HashMap<Long, Integer>>();
		touched = new HashSet<Long>();
		Scanner s = new Scanner(new File("input.txt"));
		int nbcas = s.nextInt();
		
		for(int i=0; i<nbcas; i++){
			long a = s.nextLong();
			long b = s.nextLong();
			System.out.println("Case #"+(i+1)+": "+calc(a,b));
		}
		
		/*
		for(long m: found.keySet()){
			HashMap<Long, Integer> map = found.get(m);
			for(long n: map.keySet()){
				if(map.get(n)==2){
					System.out .println(m+" "+n);
				}
			}
		}*/
	}
}
