import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

package com.gcj.parser;

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

public class Parser {

	private String inputFileDest;
	private FileInputStream fileInputStream;

	public Parser(String inputFileDest) {
		super();
		this.inputFileDest = inputFileDest;
		try {
			fileInputStream = new FileInputStream(new File(inputFileDest));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
	}

	public String getInputFileDest() {
		return inputFileDest;
	}

	public void setInputFileDest(String inputFileDest) {
		this.inputFileDest = inputFileDest;
	}

	public FileInputStream getFileInputStream() {
		return fileInputStream;
	}

	public void setFileInputStream(FileInputStream fileInputStream) {
		this.fileInputStream = fileInputStream;
	}
	
	@SuppressWarnings("unchecked")
	public ArrayList<Integer>[] toArray(){
		
		Scanner scan = new Scanner(getFileInputStream());
		
		// The first line must be an number
		Integer nbOfLines = new Integer(scan.nextLine());
		
		ArrayList<Integer>[] parsedData = new ArrayList[nbOfLines];
		int index = 0;
		
		while (scan.hasNextLine()){
			
			String line = scan.nextLine();
			String[] datas = line.split(" ");
			
			ArrayList<Integer> dataRow = new ArrayList<Integer>();
			
			for (String data : datas){
				dataRow.add(new Integer(data));
			}
			
			parsedData[index] = dataRow;
			index++;
		}
		
		return parsedData;
		
	}
	
	
}
