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

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}

import java.io.*;

class Programa
{
	
public static long procesar(String linea)
{
	String vals[]=linea.split(" ");
	int digitos=vals[0].length();
	long a,b;
	a=Long.parseLong(vals[0]);
	b=Long.parseLong(vals[1]);
	long reciclados=0;
	
	int indi,ind = (int)(b-a+1);
	
	int parejas[][]=new int[ind][ind];
	long t=b-a+1;
	long cal;
	long v,resto,pot;
	String resu,resu2;
/*	for (long =0;l<t;l++) { 
		r[(int)l]=0;
		r[(int)l]=0;
	}*/
	for (long l=a;l<=b;l++)
        {
            ind=(int) (l-a);
   
               for (int k=1;k<digitos;k++)
               {		  
                  pot=(long) Math.pow(10,k);  		       
		  resto=l%pot;
		  v=l/pot;
		  resu=""+resto+v;     
		  cal=Long.parseLong(resu);      
   		  indi=(int) (l-a);
                  ind=(int) (cal-a);		       
	          if (cal>=a && cal<=b && cal!=l && parejas[indi][ind]==0  && parejas[ind][indi]==0 )
                  {
	   //         System.out.println(""+l+" "+cal);
		    parejas[indi][ind]=1;
              	    reciclados++;    		      
	         }
		  
            }	      
	}
	return reciclados;
}

	public static void main(String args[])
  {
  try{

  FileInputStream fstream = new FileInputStream(args[0]);
  
  DataInputStream in = new DataInputStream(fstream);
  BufferedReader br = new BufferedReader(new InputStreamReader(in));
  String strLine;
  strLine = br.readLine();
  int casos=Integer.parseInt(strLine);
  int caso=1; 	  
  long respuesta=0;	
  while ((strLine = br.readLine()) != null)   {
              respuesta=procesar(strLine);
	      System.out.println("Case #"+caso+": "+respuesta);
              caso++;
	  }
  //Close the input stream
  in.close();
    }catch (IOException e){//Catch exception if any
  System.err.println("Error: " + e.getMessage());
  }
  }
}