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.google.cj;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

public class IOHandler {
	private static Logger logger = Logger.getLogger(IOHandler.class);

	public static List<String> readInput(String fileName) {
		List<String> fileContents = new ArrayList<String>();
		BufferedReader reader = null;
		try {
			reader = new BufferedReader(new FileReader(fileName));
			String line = null;

			while ((line = reader.readLine()) != null) {
				fileContents.add(line);
			}

		} catch (IOException e) {
			logger.error(e);
		} finally {
			try {
				reader.close();
			} catch (IOException e) {
				logger.error(e);
			}
		}
		Integer noTestCases = Integer.valueOf(fileContents.remove(0));
		System.out.println("No. of test cases [" + noTestCases + "]");

		return fileContents;
	}

	public static void writeOutput(List<String> outputList, String fileName) {
		List<String> finalList = new ArrayList<String>();
		int i = 1;
		for (String output : outputList) {
			finalList.add("Case #" + i + ": " + output);
			i++;
		}

		BufferedWriter out = null;
		try {
			out = new BufferedWriter(new FileWriter(fileName));
			for (String line : finalList) {
				out.write(line);
				out.newLine();
			}
		} catch (IOException e) {
			logger.error(e);
		} finally {
			try {
				out.close();
			} catch (IOException e) {
				logger.error(e);
			}
		}
	}
}
