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.at.codejam.problem3.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.StringTokenizer;

import de.at.codejam.problem3.Problem3Case;
import de.at.codejam.util.AbstractInputFileParser;
import de.at.codejam.util.TaskStatus;

public class Problem3InputFileParser extends
		AbstractInputFileParser<Problem3Case> {

	private int nextCaseNumber = 1;
	private int nextCaseLine = 2;

	public Problem3InputFileParser(File inputFile) {
		super(inputFile);
	}

	@Override
	public Problem3Case getNextCase() throws IOException {

		Problem3Case problem3Case = new Problem3Case();

		TaskStatus taskStatus = getTaskStatus();
		BufferedReader bufferedReader = null;

		try {

			bufferedReader = checkoutBufferedReader();
			taskStatus.setNumberCurrentCase(nextCaseNumber);

			List<String> lineList = readLines(bufferedReader, nextCaseLine, 1);

			String stringCase = lineList.get(0);
			StringTokenizer stringTokenizer = new StringTokenizer(stringCase,
					" ");

			String numberA = stringTokenizer.nextToken().trim();
			String numberB = stringTokenizer.nextToken().trim();

			problem3Case.setNumberA(numberA);
			problem3Case.setNumberB(numberB);

			nextCaseNumber++;
			nextCaseLine += 1;

		} finally {
			if (null != bufferedReader) {
				try {
					checkinBufferedReader(bufferedReader);
				} catch (IOException e) {

				}
			}
		}

		return problem3Case;
	}

}
