import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package com.googlecodejam.gcj2012.qualificationround;

import java.io.File;
import java.io.FileWriter;
import java.util.HashSet;
import java.util.Scanner;

public class C {

//	public final static String INPUT_FILE_NAME = "test.in";
//	public final static String INPUT_FILE_NAME = "C-small-attempt0.in";
	public final static String INPUT_FILE_NAME = "C-large.in";
	
	public FileWriter outputWriter;
	public Scanner scanner;
	public String output = "";
	
	public void run() throws Exception {
		// Commons variables
		int testCaseNumber = 0;
		int testCaseResult = 0;
		// Test start
		{
			int nbTests = Integer.parseInt(scanner.nextLine());
			
			for (testCaseNumber = 0; testCaseNumber < nbTests; testCaseNumber++) {
				String[] bounds = scanner.nextLine().split(" ");
				String sMinValue = bounds[0];
				String sMaxValue = bounds[1];
				int minValue = Integer.parseInt(sMinValue);
				int maxValue = Integer.parseInt(sMaxValue);
				int nbDigits = sMinValue.length();
				testCaseResult = 0;
				if (nbDigits > 1) {
					for (int currentValue = minValue; currentValue < maxValue; currentValue++) {
						HashSet<Integer> foundValues = new HashSet<Integer>();
						String sCurrentValue = Integer.toString(currentValue);
						char firstNumber = sCurrentValue.charAt(0);
						for (int i = nbDigits - 1; i > 0; i--) {
							char number = sCurrentValue.charAt(i);
							if (number >= firstNumber) {
								String firstPart = sCurrentValue.substring(0, i);
								String secondPart = sCurrentValue.substring(i);
								int val = Integer.parseInt(secondPart + firstPart);
								if (val <= maxValue && val > currentValue && !foundValues.contains(val)) {
									testCaseResult++;
									foundValues.add(val);
								}
							}
						}
					}
				}
				
				output += "Case #" + (testCaseNumber+1) + ": " + testCaseResult + "\n";
			}
		}
	}
	
	/////////////////////////////////////////////////////////////////////////////////////////////////////
	
	public void init() throws Exception {
		File temp = new File("output/");
		if (!temp.exists()) {
			temp.mkdir();
		}
		// Output file
		outputWriter = new FileWriter("output/output.txt", false);
		// Input file
		scanner = new Scanner(new File("resources/" + INPUT_FILE_NAME));
	}

	public void stop() throws Exception {
		// Closing files
		outputWriter.write(output, 0, output.length());
		scanner.close();
		outputWriter.close();
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception {
		C instance = new C();
		long start = System.currentTimeMillis();
		
		instance.init();
		instance.run();
		instance.stop();
		
		System.out.println("Finished in " + (System.currentTimeMillis() - start) + " ms");
	}
	
}
