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;
	}

}

import java.io.*;
import java.util.*;

class Recycled
{
	static boolean[] check = new boolean[2000000];

	public static void main (String [] args) throws IOException 
	{
		BufferedReader in = new BufferedReader(new FileReader("C-small-attempt0.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));
		
		StringTokenizer st = new StringTokenizer(in.readLine());
		int numCases = Integer.parseInt(st.nextToken());
		
		for (int caseIndex = 0; caseIndex < numCases; caseIndex++)
		{
			out.print("Case #" + (caseIndex + 1) + ": ");
			
			st = new StringTokenizer(in.readLine());
			int min = Integer.parseInt(st.nextToken());
			int max = Integer.parseInt(st.nextToken());
			
			// Reset check
			for (int i = 0; i < 2000000; i++)
			{
				check[i] = false;
			}
			
			int result = 0;
			for (int i = min; i <= max; i++)
			{
				result += countRecycledNumbers(i, min, max);
			}
			
			out.print(result);
			
			out.println();
		}
		
		out.close();
	}
	
	public static ArrayList<Integer> generateRecycledNumbers(int x)
	{
	
		// Count number of digits
		int y = x;
		int numDigits = 0;
		while (y > 0)
		{
			numDigits ++;
			y /= 10;
		}
		
		// Get the list of digits
		int[] listDigits = new int[numDigits];
		int index = numDigits-1;
		while (x > 0)
		{
			listDigits[index] = x%10;
			x /= 10;
			index --;
		}
		
		// Generate all possible recycled number from x
		ArrayList<Integer> result = new ArrayList<Integer>();
		
		for (int i = 0; i < numDigits; i++)
		{
			if (listDigits[i] == 0)
				continue;
			
			int num = 0;
			
			for (int j = 0; j < numDigits; j++)
			{
				num = num*10 + listDigits[(i+j)%numDigits];
			}
			
			result.add(num);
		}
		
		return result;
	}
	
	public static int countRecycledNumbers(int x, int min, int max)
	{
		if (check[x])
		{
			return 0;
		}
		else
		{
			ArrayList<Integer> recycledNumbers = generateRecycledNumbers(x);
			Collections.sort(recycledNumbers);
			
			int numDistinctNumbers = 0;
			
			for (int i = 0; i < recycledNumbers.size(); i++)
			{
				check[recycledNumbers.get(i)] = true;
				
				if (i > 0 && recycledNumbers.get(i) > recycledNumbers.get(i-1) && recycledNumbers.get(i) >= min && recycledNumbers.get(i) <= max)
				{
					numDistinctNumbers++;
				}
				else if (i == 0 && recycledNumbers.get(i) >= min && recycledNumbers.get(i) <= max)
				{
					numDistinctNumbers++;
				}
			}
			
			return (numDistinctNumbers*(numDistinctNumbers-1)/2);
		}
	}
}