/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam;

/**
 *
 * @author eblanco
 */
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import javax.swing.JFileChooser;

public class RecycledNumbers {

    public static String DatosArchivo[] = new String[10000];

    public static int[] convertStringArraytoIntArray(String[] sarray) throws Exception {
        if (sarray != null) {
            int intarray[] = new int[sarray.length];
            for (int i = 0; i < sarray.length; i++) {
                intarray[i] = Integer.parseInt(sarray[i]);
            }
            return intarray;
        }
        return null;
    }

    public static boolean CargarArchivo(String arch) throws FileNotFoundException, IOException {
        FileInputStream arch1;
        DataInputStream arch2;
        String linea;
        int i = 0;

        if (arch == null) {
            //frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            JFileChooser fc = new JFileChooser(System.getProperty("user.dir"));
            int rc = fc.showDialog(null, "Select a File");
            if (rc == JFileChooser.APPROVE_OPTION) {
                arch = fc.getSelectedFile().getAbsolutePath();
            } else {
                System.out.println("No hay nombre de archivo..Yo!");
                return false;
            }
        }
        arch1 = new FileInputStream(arch);
        arch2 = new DataInputStream(arch1);
        do {
            linea = arch2.readLine();
            DatosArchivo[i++] = linea;
            /* if (linea != null) {
            System.out.println(linea);
            }*/
        } while (linea != null);
        arch1.close();
        return true;
    }

    public static boolean GuardaArchivo(String arch, String[] Datos) throws FileNotFoundException, IOException {
        FileOutputStream out1;
        DataOutputStream out2;
        int i;
        out1 = new FileOutputStream(arch);
        out2 = new DataOutputStream(out1);

        for (i = 0; i < Datos.length; i++) {
            if (Datos[i] != null) {
                out2.writeBytes(Datos[i] + "\n");
            }
        }
        out2.close();
        return true;
    }

    public static void echo(Object msg) {
        System.out.println(msg);
    }

    public static void main(String[] args) throws IOException, Exception {
        String[] res = new String[10000], num = new String[2];
        int i, j, k, ilong;
        int ele = 1;
       ArrayList al = new ArrayList();
        String FName = "C-small-attempt0",  istr, irev, linea;
        if (CargarArchivo("C:\\eblanco\\Desa\\CodeJam\\Code Jam\\test\\" + FName + ".in")) {
            for (j = 1; j <= Integer.parseInt(DatosArchivo[0]); j++) {
                linea = DatosArchivo[ele++];
                num = linea.split(" ");
                   al.clear();
                // echo("A: "+num[0]+" B: "+num[1]);
                for (i = Integer.parseInt(num[0]); i <= Integer.parseInt(num[1]); i++) {
                    istr = Integer.toString(i);
                    ilong = istr.length();
                 
                    for (k = 1; k < ilong; k++) {
                        if (ilong > k) {
                            irev = istr.substring(istr.length() - k, istr.length()) + istr.substring(0, istr.length() - k);
                            //echo("caso: " + j + ": isrt: " + istr + " irev: " + irev);
                            if ((Integer.parseInt(irev) > Integer.parseInt(num[0])) && (Integer.parseInt(irev) > Integer.parseInt(istr)) && (Integer.parseInt(irev) <= Integer.parseInt(num[1]))) {
                                al.add("(" + istr + "," + irev + ")");
                            }
                        }
                    }
                }
                HashSet hs = new HashSet();
                hs.addAll(al);
                al.clear();
                al.addAll(hs);
                res[j] = "Case #" + j + ": " + al.size();
                echo(res[j]);
                LeerArchivo.GuardaArchivo("C:\\eblanco\\Desa\\CodeJam\\Code Jam\\test\\" + FName + ".out", res);
            }
        }
    }
}

/**
 * Created by IntelliJ IDEA.
 * User: kingsto
 * Date: 4/15/12
 * Time: 1:10 AM
 * To change this template use File | Settings | File Templates.
 */
// to be run with -Xmx1024m

import java.util.*;
import java.io.*;

public class RecycledNumbers {

    class Testcase {
        int ans;

        public Testcase() {
        }

        public Testcase(int seed) {
            Random rnd = new Random(seed);
        }

        int A, B;

        public void loadInput(Scanner sc) {
            A = sc.nextInt();
            B = sc.nextInt();
        }

        public void solveSlow() {
        }

        private int numRecycled(int num, int a , int b) {
            LinkedList<Integer> number = new LinkedList<Integer>();
            int temp = num;
            while(temp != 0) {
                int c = temp % 10;
                temp /= 10;
                number.addFirst(c);
            }
            int res = 0;
            while (temp != num) {
                temp = 0;
                int last = number.pollLast();
                number.addFirst(last);
                for (Integer e: number) temp = 10*temp + e.intValue();
                if (temp > num && temp >= a && temp <= b) res++;
            }
            return res;
        }
        public void solveFast() {
            for (int i = A; i <= B; i++) { 
                ans += numRecycled(i, A, B);
            }
        }

        public void printSelf(PrintWriter pw) {
            pw.println(ans);
        }

        public boolean sameAnswers(Testcase other) {
            return false;
        }
    }

    final String AFTER_CASE = " ";

    public void go() throws Exception {

        Scanner sc = new Scanner(new FileReader("input.txt"));
        PrintWriter pw = new PrintWriter(new FileWriter("output.txt"));

        int caseCnt = sc.nextInt();

        for (int caseNum = 0; caseNum < caseCnt; caseNum++) {
            System.out.println("solving case " + caseNum);

            Testcase tc = new Testcase();

            tc.loadInput(sc);
            tc.solveFast();

            pw.print("Case #" + (caseNum + 1) + ":");
            pw.print(AFTER_CASE);

            tc.printSelf(pw);
        }

        pw.flush();
        pw.close();
        sc.close();
    }

    public void stresstest() {
        int it = 0;
        Random rnd = new Random();
        while (true) {
            it++;
            if (it % 1000 == 0)
                System.out.println(it + " iterations");

            int seed = rnd.nextInt();

            Testcase tc1 = new Testcase(seed);
            tc1.solveFast();

            Testcase tc2 = new Testcase(seed);
            tc2.solveSlow();

            if (!tc1.sameAnswers(tc2)) {
                System.out.println("ERROR: it failed");
                System.exit(0);
            }
        }
    }

    public static void main(String[] args) throws Exception {
        new RecycledNumbers().go();
    }
}

