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

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

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

public class RecycledNumbers {

private static ArrayList<String> A,B; 

public static void main(String[] args) throws Exception {

File in = new File("C-small-attempt0.in");
File out = new File("out.txt");
RecycledNumbers.read(in);
RecycledNumbers.print(out);


}
 

public static void read (File file) throws FileNotFoundException {
 Scanner scanner = new Scanner (file);
 int cases = scanner.nextInt();
 A = new ArrayList<String>(cases);
 B = new ArrayList<String>(cases);
 while (scanner.hasNext()) {
    A.add(scanner.next());
    B.add(scanner.next());    
 }
}
 
public static void print (File file) throws FileNotFoundException {
 PrintStream fileStream = new PrintStream (file);
 for (int i = 0; i < A.size(); i++) {
    //fileStream.println(A.get(i) + " " + B.get(i));
    fileStream.println("Case #" + (i+1) +": " + test(A.get(i),B.get(i)));
 }
fileStream.close();
}

public static int test(String A, String B) {

int returnThis = 0;

if (A.length() == 1) {
   return 0;
}

   int limit = Integer.valueOf(B); 
   int start = Integer.valueOf(A);
   for (int i = start; i <= limit; i++) {
      String base = Integer.toString(i);
      int count = 1;
      String m = "" + base.charAt(base.length() - count); 
      while (true) {                  
         String out = m + base.substring(0, base.length() - count);
         //System.out.println(base+": " + out);
         if (verify(base, out, limit)) {
           // System.out.println("A: "+A +" B: " + B + " base: " + base +" out: " + out);
            returnThis++;
         }
         count++;
         if (base.length() <= count) break;
         if (base.equals(out)) break;
         m = base.charAt(base.length() - count) + m;  
      }     
   }
//System.out.println(returnThis);
return returnThis;
}

public static boolean verify(String n, String m, int limit) {
   if (m.charAt(0) == '0') return false;
   if (Integer.valueOf(n) < Integer.valueOf(m) && Integer.valueOf(m) <= limit) {
      return true;
   }
return false;
}

}
