import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

package codejam;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public abstract class Task {
	
	private String inputFileName;
	private BufferedReader in;
	private PrintWriter out;

	public Task(String[] args) {
		inputFileName = args[0];
	}
	
	public void execute() throws IOException {
		File f = new File(inputFileName);   
        in = new BufferedReader(new FileReader(f));
        
		catchInputData();
		
		in.close();
		
		processInputData();
		
		f = new File(inputFileName.substring(0, inputFileName.length() - 2) + "out");
		f.createNewFile();
		out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
		
		generateOutputFile();
		
		out.flush();
		out.close();
	}

	protected abstract void generateOutputFile() throws IOException;

	protected abstract void processInputData();

	protected abstract void catchInputData() throws IOException;

	protected String readLine() throws IOException {
		return in.readLine();
	}

	protected void writeLine(String line) throws IOException {
		out.println(line);
	}

}
