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.google.codejam.recycle;

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

/**
 *
 * Class to generate Test Report.
 * @author Sushant Deshpande
 */
public class OutputRecorder {

    /**
     * Method for generating Test Report.
     * @param testCases List<TestCase> list of test cases for report is to be generated.
     * @param outputFile String output file for writing TestReport.
     */
    public static void generateTestReport(final List<TestCase> testCases, final  String outputFile) {
        BufferedWriter writer = null;
        try {
            writer = new BufferedWriter(new PrintWriter(outputFile));
            for(TestCase testCase : testCases) {
                writer.write(testCase.printTestResult());
                writer.flush();
            }
            writer.flush();
        } catch(IOException ie) {
            System.out.println("Some error occured while generating test report " + ie.getMessage());
            System.out.println("Printing result to standard output");
            for(TestCase testCase : testCases) {
                System.out.println(testCase.printTestResult());
            }
        } finally {
            if(writer != null) {
                try {
                    writer.close();
                } catch(IOException ie) {
                    System.out.println("Some error occured while closing output stream");
                }
            }
        }
    }

}