/*
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 * 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);
            }
        }
    }
}

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

//4/14/12 11:29 PM
//by Abrackadabra

public class RecycledNumbers {
    public static void main(String[] args) throws IOException {
        if (args.length > 0 && args[0].equals("Abra")) debugMode = true;
        new RecycledNumbers().run();
        /*new Thread(null, new Runnable() {
            public void run() {
                try {
                    new RecycledNumbers().run();
                } catch (IOException e) {
   #                 e.printStackTrace();
                }
            }
        }, "1", 1 << 24).start();*/
    }

    int IOMode = 0; //0 - consoleIO, 1 - <taskName>.in/out, 2 - input.txt/output.txt, 3 - test case generator
    String taskName = "";

    void solve() throws IOException {
        int T = nextInt();
        for (int Ti = 1; Ti <= T; Ti++) {
            int a = nextInt(), b = nextInt();
            int res = 0;
            for (int i = a; i <= b; i++) {
                String q = Integer.toString(i);
                if (q.length() == 1) continue;
                for (int j = 0; j < q.length(); j++) {
                    q = q.substring(1) + q.charAt(0);
                    if (q.charAt(0) == '0') continue;
                    if (Integer.parseInt(q) == i) break;
                    if (Integer.parseInt(q) > i && Integer.parseInt(q) <= b)
                        res++;
                }
            }
            out.println("Case #" + Ti + ": " + res);
        }
    }

    long startTime = System.nanoTime(), tempTime = startTime, finishTime = startTime;
    long startMem = Runtime.getRuntime().totalMemory(), finishMem = startMem;

    void run() throws IOException {
        init();
        if (debugMode) {
            con.println("Start");
            con.println("Console:");
        }
        solve();
        finishTime = System.nanoTime();
        finishMem = Runtime.getRuntime().totalMemory();
        out.flush();
        if (debugMode) {
            int maxSymbols = 1000;
            BufferedReader tbr = new BufferedReader(new FileReader("input.txt"));
            char[] a = new char[maxSymbols];
            tbr.read(a);
            if (a[0] != 0) {
                con.println("File input:");
                con.println(a);
                if (a[maxSymbols - 1] != 0) con.println("...");
            }
            tbr = new BufferedReader(new FileReader("output.txt"));
            a = new char[maxSymbols];
            tbr.read(a);
            if (a[0] != 0) {
                con.println("File output:");
                con.println(a);
                if (a[maxSymbols - 1] != 0) con.println("...");
            }
            con.println("Execution time: " + (finishTime - startTime) / 1000000000.0 + " sec");
            con.println("Used memory:    " + (finishMem - startMem) + " bytes");
            con.println("Total memory:   " + Runtime.getRuntime().totalMemory() + " bytes");
        }
    }

    boolean tick(double x) {
        if (System.nanoTime() - tempTime > x * 1e9) {
            tempTime = System.nanoTime();
            con.println("Tick at " + (tempTime - startTime) / 1000000000 + " sec");
            con.print("   ");
            return true;
        }
        return false;
    }

    static boolean debugMode = false;
    PrintStream con = System.out;

    void init() throws IOException {
        if (debugMode && IOMode != 3) {
            br = new BufferedReader(new FileReader("input.txt"));
            out = new PrintWriter(new FileWriter("output.txt"));
        } else
            switch (IOMode) {
                case 0:
                    br = new BufferedReader(new InputStreamReader(System.in));
                    out = new PrintWriter(System.out);
                    break;
                case 1:
                    br = new BufferedReader(new FileReader(taskName + ".in"));
                    out = new PrintWriter(new FileWriter(taskName + ".out"));
                    break;
                case 2:
                    br = new BufferedReader(new FileReader("input.txt"));
                    out = new PrintWriter(new FileWriter("output.txt"));
                    break;
                case 3:
                    out = new PrintWriter(new FileWriter("input.txt"));
                    break;
            }
    }

    BufferedReader br;
    PrintWriter out;
    StringTokenizer in;

    boolean hasMoreTokens() throws IOException {
        while (in == null || !in.hasMoreTokens()) {
            String line = br.readLine();
            if (line == null) return false;
            in = new StringTokenizer(line);
        }
        return true;
    }

    String nextString() throws IOException {
        return hasMoreTokens() ? in.nextToken() : null;
    }

    int nextInt() throws IOException {
        return Integer.parseInt(nextString());
    }

    long nextLong() throws IOException {
        return Long.parseLong(nextString());
    }

    double nextDouble() throws IOException {
        return Double.parseDouble(nextString());
    }
}