/*
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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.*;

public class QualiC_Naive
{
  static void sop(String str)
  {
    System.out.println(str);
  }
  
  static void sop1(String str)
  {
    System.out.print(str);
  }
  
  public static void main(String args[])
  {
    long tstart = System.currentTimeMillis();
    if(args.length < 1)
    {
      System.out.println("You have not given input file!");
      System.exit(0);
    }
    File f1 = null;
    Scanner sc = null;
    try
    {
      f1 = new File(args[0]);
      sc = new Scanner(f1);
    }
    catch(Exception e)
    {
      System.out.println("Error opening the input file " + e);
    }
    /*
      int nCases, i, j, k, m, n;
      sc.next();
      sc.nextInt();
      sc.nextLine();
      sc.nextDouble();
    */
    int nCases, i, j, k, m, n;
    nCases = sc.nextInt();
    // sc.nextLine();
    for(i=1; i<=nCases; ++i)
    {
      int a = sc.nextInt();
      int b = sc.nextInt();
      int ans = 0;
      String strn = "" + a;
      // String strm = "" + b;
      int len = strn.length();
      int mult=0;
      switch(len)
      {
        case 2: mult = 10; break;
        case 3: mult = 100; break;
        case 4: mult = 1000; break;
        case 5: mult = 10000; break;
        case 6: mult = 100000; break;
        case 7: mult = 1000000; break;
      }
      if(len == 1)
        ans = 0;
      else
      { 
      /*
        try
	{
	  FileWriter tempf = new FileWriter("temp.dat");
	  BufferedWriter buff = new BufferedWriter(tempf);
	  buff.write("Case " + i + ":-------------------------------------------\n");
      */
        int c[] = new int[len];
        for(j=a; j<=b; j++)
	{ 
	  c[0] = j;
	  HashSet<Integer> x = new HashSet<Integer>();
	  for(k=1; k<len; k++)
	  {
	    c[k] = (c[k-1] % 10) * mult + c[k-1] / 10;
            if(j<c[k] && c[k]<=b)
	      {
	        if(x.add(c[k]))
	          ans++;
	   //   buff.write("" + j + " - " + c2 + "\n");
	      }
	  }

	}
	/*
	  buff.close();
	}
	catch(IOException e1)
	{
	  sop("Error: " + e1);
	}
	*/
      }
  
      sop("Case #" + i + ": " + ans);
    }
    long tend = System.currentTimeMillis();
    System.err.println("Time taken: " + (tend - tstart)/1000.0 + " seconds");
  } // end of main()
}

