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.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.LinkedList;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws IOException {
		LinkedList<String> list = readFile("C:/Users/Wurschti/workspace2/2012_3_recycled/src/input.txt");
		int counter = 1;
		int result = 0;
		LinkedList<Pair> resultList = new LinkedList<Pair>();

		for (String s : list) {
			resultList = new LinkedList<Pair>();
			String[] pair = s.split(" ");
			if (pair.length < 2) {
				result = 0;
			} else {
				int min = Integer.parseInt(pair[0]);
				int max = Integer.parseInt(pair[1]);
				
				int counter2 = min;
				while (counter2 < max) {
					String intToUse = counter2 + "";
					for (int i = 0; i < intToUse.length(); i++) {
						char[] intAsCharArray = intToUse.toCharArray();
						for (int j = 0; j < intAsCharArray.length - 1; j++) {
							intAsCharArray[j] = intAsCharArray[j + 1];
						}
						intAsCharArray[intAsCharArray.length - 1] = intToUse.charAt(0);
						
						intToUse = "";
						for (char c : intAsCharArray) {
							intToUse += c;
						}
						
						//evtl contains umschreiben
						int resultNumber = Integer.parseInt(intToUse);
						Pair p = new Pair(counter2, resultNumber);
						if (!isIn(p, resultList) && resultNumber <= max && resultNumber > counter2) {
							resultList.add(p);
						}
						
					}
					
					counter2++;
				}
			}
			
		
			
			System.out.format("Case #%d: %s\n", counter, resultList.size());
			counter++;
		}
	}
	
	private static boolean isIn(Pair p, LinkedList<Pair> list) {
		for (Pair p2 : list) {
			if (p.first == p2.first && p.second == p2.second) {
				return true;
			}
		}
		return false;
	}
	
	
	public static LinkedList<String> readFile(String filename)
			throws IOException {
		LinkedList<String> list = new LinkedList<String>();
		File file = new File(filename);

		if (!file.exists()) {
			System.out.println("file not found");
			return null;
		}

		BufferedReader in = new BufferedReader(new FileReader(file));

		// read vocables
		String input = in.readLine();
		input = in.readLine();

		while (input != null) {
			list.add(input);
			input = in.readLine();
		}

		in.close();
		return list;
	}
}
