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.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.HashMap;


public class Main {

	private static String fileDirectory = "files/";
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Problem3(fileDirectory + "C-small-attempt0.in",fileDirectory + "C-small-attempt0.out");
	}
	
	public static void Problem3(String inFile, String outFile)
	{
		try {
			BufferedReader br = new BufferedReader(new FileReader(inFile));
			BufferedWriter bw = new BufferedWriter(new FileWriter(outFile));
			

			
			
			int cases = Integer.parseInt(br.readLine());
			
			for (int i = 0; i < cases; i++)
			{
				if (i > 0)
				{
					bw.newLine();
				}
				String line = br.readLine();
				String[] numbers = line.split(" ");
				int A = Integer.parseInt(numbers[0]);
				int B = Integer.parseInt(numbers[1]);
				int length = String.valueOf(A).length();
				int count = 0;
				
				
				
				for (int j = A; j <= B; j++)
				{
					String sNum = Integer.toString(j);
					HashMap<Integer, Integer> map = new HashMap<Integer,Integer>();
					//System.out.print(sNum + ": ");
					for (int k = 1; k < length; k++)
					{
						
						String newNum = sNum.substring(k, sNum.length());
						newNum += sNum.substring(0, k);
						//System.out.print(" " + newNum);
						int number = Integer.parseInt(newNum);
						if (number > j && number <= B)
						{
							if (!map.containsKey(number))
							{
								map.put(number, null);
								count++;
							}
						}
						
					}
					//System.out.println();
				}
				
				
				bw.write("Case #" + (i+1) + ": ");
				bw.write(Integer.toString(count));
			}
			
			
			bw.close();
			br.close();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
	}

}
