/*
 * 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);
        
    }
    }
}

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

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

/**
 *
 * @author Himeshi
 */
public class RecycledNumbers {

    public static void main(String[] args) {

        int A, B, N, pairs;
        String strLine, integers;

        try {

            BufferedReader br = new BufferedReader(new InputStreamReader(new DataInputStream(new FileInputStream("D:/Academic Work/Semester 5/Code Jam/C-small.in"))));

            while ((strLine = br.readLine()) != null) {

                N = Integer.parseInt(strLine);

                for (int i = 0; i < N; i++) {
                    integers = br.readLine();
                    String[] tokens = integers.split(" ");
                    A = Integer.parseInt(tokens[0]);
                    B = Integer.parseInt(tokens[1]);
                    pairs = calculate(A, B, i);
                    writeToFile(pairs, i);
                }

            }


        } catch (Exception e) {
            System.out.println("here is the exception"+e);
        }

    }

    private static int calculate(int A, int B, int i) {
        int pairs = 0;

        for (int index = A; index <= B; index++) {
            ArrayList<Integer> list = getPairs(index);

            for (int j = 0; j < list.size(); j++) {
                if (list.get(j) <= B && list.get(j)>index) {
                   //System.out.println(""+index+" "+list.get(j));
                    pairs++;
                }
            }
        }

        return pairs;
    }

    private static ArrayList<Integer> getPairs(int index) {

        ArrayList<Integer> list = new ArrayList<Integer>();
        String temp = Integer.toString(index);
        int length = temp.length();

        char[] buffer = temp.toCharArray();

        if (index < 10) {
            return list;
        } else {


            for (int numbers = 1; numbers < length; numbers++) {
              
                char c=buffer[length-1];
                
                for(int k=buffer.length-1;k>0;k--)
                {
                    buffer[k]=buffer[k-1];                    
                }
                
                buffer[0]=c;
                String s=new String(buffer);
                int number=Integer.parseInt(s);
                
                if(!list.contains(number))
                    list.add(number);
            }
            return list;
        }
    }
    
     private static void writeToFile(int a,int N) {
        try {
            // Create file 
            FileWriter fstream = new FileWriter(new File("D:/Academic Work/Semester 5/Code Jam/out.txt"),true);
            BufferedWriter out = new BufferedWriter(fstream);
           String str="Case #"+(N+1)+": "+a+"\r\n";
           out.append(str);
            //Close the output stream
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }
    }
}
