import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

package com.googlecodejam;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;


/* Main function goes here */
public class RecycledNumbersProblemC {
	public static void main(String[] args) {
		try {
			BufferedReader bfreader = new BufferedReader(new FileReader("E:\\workspace\\TopCoder\\src\\com\\googlecodejam\\C-small-attempt0.in"));
			BufferedWriter bfrwriter = new BufferedWriter(new FileWriter("E:\\workspace\\TopCoder\\src\\com\\googlecodejam\\output.txt"));
			
			
			int n = Integer.parseInt(bfreader.readLine());
			String out = "";
			for (int i = 0; i < n; i++) {
				String s = bfreader.readLine();
				out += "Case #" + (i + 1) + ": " + getRecycledPair(s) + "\n";
			}
			 System.out.println(out);
			 bfrwriter.write(out);
			 bfreader.close();
				bfrwriter.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	/* Main function goes here */
	public static String getRecycledPair(String s) {

		int iMinNumber = Integer.parseInt(s.split(" ")[0]);
		int iMaxNumber = Integer.parseInt(s.split(" ")[1]);
		int iLength;
		Integer iNoRecycledNo = 1;
		Integer iNoOfRecycledPairs = 0;
		ArrayList<Integer> alInputNos = new ArrayList<Integer>();

		for (int i = iMinNumber; i <= iMaxNumber; i++) {
			alInputNos.add(i);
		}

		for (int number : alInputNos) {
			StringBuffer sNumber = new StringBuffer(Integer.toString(number));
			iLength = sNumber.length();
			ArrayList<Integer> alRecycledPairs = new ArrayList<Integer>();

			for (int i = 1; i < sNumber.length(); i++) {
				StringBuffer recNum = new StringBuffer();
				recNum.append(sNumber.substring(i, sNumber.length()));
				recNum.append(sNumber.substring(0, i));
				int irecNumber = Integer.parseInt(recNum.toString());
				String sTempNum = Integer.toString(irecNumber);
				if (iLength == sTempNum.length()) {
					if ((!(alRecycledPairs.contains(irecNumber))) && irecNumber <= iMaxNumber && irecNumber >= iMinNumber && !(irecNumber == number) && (alInputNos.contains(irecNumber))) {
						alRecycledPairs.add(irecNumber);
						iNoOfRecycledPairs = iNoRecycledNo / 2;
						iNoRecycledNo++;
					}
				}
			}
		}
		
		return Integer.toString(iNoOfRecycledPairs);
	}
}
