/*
 * 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);
            }
        }
    }
}

import java.util.Scanner;
public class plain
{
    static int A[],B[],n[];
public static void main(String args[])
{
    int t=0;
    Scanner in=new Scanner(System.in);
    t=in.nextInt();
    in.nextLine();
    A=new int[t];
    B=new int[t];
    n=new int[t];
    for(int i=0;i<t;i++)
    {
        String a=in.nextLine();
        int q=Integer.parseInt(a.substring(0,a.indexOf(" ")));
        int c=Integer.parseInt(a.substring(a.indexOf(" ")+1));
        A[i]=q;
        B[i]=c;        
    }
    int num=A[0];
    for(int i=0;i<t;i++)
    {
        n[i]=getTot(i);
        System.out.println("Case #1:"+n[i]);
    }    
}


public static int getTot(int i)
{
    int n=A[i];
    int   g=0,l=(Math.abs(B[i]-A[i]))-2,tot=0;       
    
    for(int j=0;j<l;j++)
    {           
        int n1=getNo(n,i);                
        tot+=n1;        
        n++;
    }
 
    return tot;
}
public static int getNo(int no,int i)
{
    int num=no,a=0,b=0,len=0;
    while(num!=0)        
    {
        a=num%10;        
        num=num/10;
        len++;
    }  
    num=no;
    int arr[]=new int[len];
    a=0;
    int l=0;
    while(num!=0)
    {
       a=num%10;
       arr[l++]=a;       
       num/=10;
    }
    num=no;       
    int no2[]=new int[Math.abs(A[i]-B[i])],g=0;
    int ln=-1,tot=0;
    for(int o=arr.length-1;o>=0;o--)
    {       
     b=arr[0]; 
    for(int p=0;p<(len-1);p++)
    {
        arr[p]=arr[p+1];  
    }
    arr[len-1]=b;        
    int rev=0;
    a=0;
    for(int p=0;p<len;p++)
    {
      rev+=arr[p]*Math.pow(10,p);
    }      
    if(rev>=A[i] && rev<=B[i] && rev>num )
        {            
          for(int k=0;k<(A[i]-B[i]);k++)  
          {  
              if(rev==no2[i])
              {
                  g=1;
                  break;
              }
          }
          if(g==0)
          {
            ln++;
            no2[ln]=rev;
            tot++;      
          }          
          g=0;          
        }             
    }
    return tot;
}

}
