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.*;

public class ProbC
{
	public static void main(String[] args) throws FileNotFoundException, IOException
	{
		BufferedReader br = new BufferedReader(new FileReader("C-small-attempt0.in"));
		int times = Integer.parseInt(br.readLine());
		BufferedWriter wr = new BufferedWriter(new FileWriter("C-small-attempt0soln.in"));
		for (int i = 0; i < times; i++)
		{
			String sentence = br.readLine();
			String[] nums = sentence.split(" ");
			int a = Integer.parseInt(nums[0]);
			int b = Integer.parseInt(nums[1]);
			int recycledPairs = 0;
			ArrayList<Integer> firstIncluded = new ArrayList<Integer>();
			ArrayList<Integer> secondIncluded = new ArrayList<Integer>();

			for (int currNum = a; currNum <= b; currNum++)
			{
				if (!firstIncluded.contains(currNum))
				{
					boolean currNumAdded = false;
					String currNumString = currNum + "";

					int digits = currNumString.length();
					for (int x = 0; x < digits; x++)
					{
						currNumString = currNumString.substring(currNumString.length() - 1) + currNumString.substring(0, currNumString.length() - 1);

						int currNumCheck = Integer.parseInt(currNumString);
						if (currNumCheck >= a && currNumCheck <= b && !(firstIncluded.contains(currNum) && secondIncluded.get(firstIncluded.indexOf(currNum)).equals(currNumCheck)) && !(secondIncluded.contains(currNumCheck) && firstIncluded.get(secondIncluded.indexOf(currNumCheck)).equals(currNum)) && currNumCheck != currNum)
						{
							secondIncluded.add(currNumCheck);
							recycledPairs++;
							//if (!currNumAdded)
							//{
								firstIncluded.add(currNum);
							//	currNumAdded = true;
						//	}
						//	System.out.println("(" + currNum + ", " + currNumString + ")");
						}
						/*else
						{
							if (currNumCheck >= a && currNumCheck <= b && currNumCheck != currNum) //&& !numsAlreadyIncluded.contains(currNumCheck) && currNumCheck != currNum)
								System.out.println("(" + currNum + ", " + currNumCheck + ")");
						}*/
					}
				}
			}
			recycledPairs /= 2;
			wr.write("Case #" + (i+1) + ": " + recycledPairs);
			wr.newLine();
		}
		wr.close();
	}
}