/*
 * 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);
        
    }
    }
}

/**
 * 
 */
package br.com.softctrl.code.c;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

/**
 * @author timoshenko
 * 
 */
public class CRecycledNumbers {

	private static int A = 0;
	private static int B = 0;
	private static int T = 4;
	private static int c = 0;

	private static String fileInput = "/Users/timoshenko/Development/Projects/SoftCtrl.com/eclipse-jboss/workspaces/google-code-jam/GoogleCodeJam2012/src/br/com/softctrl/in/C-small-attempt0.in";
	private static String fileOutput = "/Users/timoshenko/Development/Projects/SoftCtrl.com/eclipse-jboss/workspaces/google-code-jam/GoogleCodeJam2012/src/br/com/softctrl/out/C-small-attempt0_in.txt";
	private static SCFileReader scFr = null;
	private static SCFileWriter scFw = null;

	public static boolean valid(int n, int m) {
		// A ² n < m ² B
		// System.out.println(String.format("A(%d)<=n(%d)<m(%d)<=B(%d)", A, n,
		// m,
		// B));
		return (String.valueOf(n).length() == String.valueOf(m).length() ? (A <= n
				&& n < m && m <= B)
				: false);

	}

	public static void main(String[] args) {

		try {
			scFr = new SCFileReader(fileInput);
			scFw = new SCFileWriter(fileOutput);
			if (scFr.ready()) {
				T = Integer.parseInt(scFr.readLine());
				for (int z = 0; z < T; z++) {
					String[] row = scFr.readLine().split(" ");
					A = Integer.parseInt(row[0]);
					B = Integer.parseInt(row[1]);
					scFw.writeLn(String.format("Case #%d: %d", z + 1, count()));
				}
			}
			scFr.close();
			scFw.save();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static int count() {
		int count = 0;
		for (int i = A; i <= B; i++) {
			String n = String.valueOf(i);
			for (int length = n.length() - 1; (length >= 1); length--) {
				String m = n.substring(length, n.length())
						+ n.substring(0, length);
				if (valid(Integer.parseInt(n), Integer.parseInt(m))) {
					count++;
				}
			}
		}
		return count;
	}
}

class SCFileReader {
	private Reader reader = null;
	private BufferedReader bufferedReader = null;
	private File file = null;

	public SCFileReader(String fileName) throws FileNotFoundException {
		file = new File(fileName);
		reader = new FileReader(file);
		bufferedReader = new BufferedReader(reader);
	}

	public boolean ready() {
		try {
			return bufferedReader.ready();
		} catch (IOException e) {
			e.printStackTrace();
			return false;
		}
	}

	public String readLine() throws IOException {
		return bufferedReader.readLine();
	}

	public void close() {
		if (this.ready()) {
			try {
				bufferedReader.close();
				reader.close();

			} catch (IOException e) {
				e.printStackTrace();
			}
			bufferedReader = null;
			reader = null;
			file = null;
		}
	}

}

class SCFileWriter {
	private Writer writer = null;
	private BufferedWriter bufferedWriter = null;
	private File file = null;

	public SCFileWriter(String fileName) throws IOException {
		file = new File(fileName);
		if (file.exists()) {
			file.delete();
		}
		writer = new FileWriter(file);
		bufferedWriter = new BufferedWriter(writer);
	}

	public void write(String row) throws IOException {
		// System.out.println(row);
		bufferedWriter.write(row);
	}

	public void writeLn(String row) throws IOException {
		System.out.println(row);
		bufferedWriter.write(row + "\n");
	}

	public void save() {
		try {
			bufferedWriter.close();
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
		bufferedWriter = null;
		writer = null;
		file = null;

	}

}
