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 de.johanneslauber.codejam.model;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;


/**
 * 
 * @author Johannes Lauber - joh.lauber@googlemail.com
 * 
 */
public abstract class BaseProblem implements IProblem {

	protected List<ICase> listOfCases;
	private BufferedWriter out;
	private int countOutputLines = 0;

	public BaseProblem() {
		try {
			out = new BufferedWriter(new FileWriter("output/output.out"));
		} catch (Exception e) {
			System.err.println("Error: " + e.getMessage());
		}
	}

	@Override
	public void setListOfCases(List<ICase> listOfCases) {
		this.listOfCases = listOfCases;
	}

	/**
	 * 
	 * @author Johannes Lauber - joh.lauber@googlemail.com
	 * @param stringArray
	 * @return
	 */
	protected int[] toIntArray(String[] stringArray) {
		int[] intArray = new int[stringArray.length];

		for (int i = 0; i < stringArray.length; i++) {
			intArray[i] = Integer.valueOf(stringArray[i]);
		}
		return intArray;
	}

	/**
	 * 
	 * @author Johannes Lauber - joh.lauber@googlemail.com
	 * @param line
	 */
	protected void writeToFile(String line) {
		countOutputLines++;
		try {
			out.write("Case #" + countOutputLines + ": " + line);
			out.newLine();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	/**
	 * 
	 * @author Johannes Lauber - joh.lauber@googlemail.com
	 */
	protected void closeWriter() {
		try {
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}