import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

package com.bakes;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public class B {
	public static void main(String[] args) {
		B park = new B();
		park.calculate();

	}	

	private void calculate() {
		BufferedReader in;
		String strLine1;
		String strLine2;
		String strLine3;
		PrintWriter out;
		try {
			in = new BufferedReader(new FileReader("C-small-attempt0.in"));
			in.readLine();
			FileWriter outFile = new FileWriter("output.txt");
			out = new PrintWriter(outFile);
			int n = 0;

			while ((strLine1 = in.readLine()) != null) {
				n++;
				
				String[] data = strLine1.split(" ");
				
				int int1 = Integer.parseInt(data[0]);
				int int2 = Integer.parseInt(data[1]);
				int count = 0;
				for (int i = int1; i < int2; i++)
				{
					String s = ""+i;
					int[] sorteds = new int[s.length()-1];
					for (int k = 0; k < s.length()-1; k++)
					{
						s = permute(s);
						int j = Integer.parseInt(s);
						sorteds[k] = j;
						if (j > i && j <= int2)
						{
							boolean unique = true;
							for (int l = 0; l < k; l++)
							{
								if (sorteds[l] == j)
								{
									unique = false;
								}
							}
							if (unique)
							{
								count++;
							}
						}
					}
				}
				String result = "Case #"+n+": "+count;
				out.println(result);
				System.out.println(result);
			}
			out.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
	String permute(String s)
	{
		if (s.length() == 1)
		{
			return s;
		}
		s = s.substring(1) + s.charAt(0);
		return s;
	}
}
