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.StringTokenizer;

/**
 * User: Grant
 * Date: 14/04/12
 * Time: 23:29
 */
public class ProblemC {
    public static void main(String[] args) throws IOException {
        // Prepare output file
        File outputFile = new File("E:\\Programming\\Java\\CodeJam\\resources\\problemCOutput.txt");
        if (outputFile.exists()) {
            outputFile.delete();
        }

        FileWriter fileWriter = new FileWriter(outputFile);
        BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);

        // Read input file
        File inputFile = new File("E:\\Programming\\Java\\CodeJam\\resources\\TestInput.txt");
        FileReader fileReader = new FileReader(inputFile);
        BufferedReader bufferedReader = new BufferedReader(fileReader);

        Integer testCases = Integer.parseInt(bufferedReader.readLine().trim());
        for (int i = 0; i < testCases; i++) {
            System.out.println(" ");
            StringTokenizer st = new StringTokenizer(bufferedReader.readLine().trim(), " ");
            int lower = Integer.parseInt(st.nextToken().trim());
            int upper = Integer.parseInt(st.nextToken().trim());

            int count = 0;
            for (int left = lower; left < upper; left++) {
                for (int right = (left + 1); right <= upper; right++) {
                    String leftStr = left + "";
                    String rightStr = right + "";
                        int start = -1;
                        while((start = leftStr.indexOf(rightStr.charAt(0), start+1)) != -1) {
                            if (rightStr.equals(leftStr.substring(start, leftStr.length()) + leftStr.substring(0, start))) {
                                count++;
                                break;
                            }
                        }
                }
            }


            StringBuilder outputLine = new StringBuilder("Case #");
            outputLine.append(i+1).append(": ").append(count).append("\n");
            bufferedWriter.write(outputLine.toString());
        }

        bufferedReader.close();
        fileReader.close();

        // Write output file
        bufferedWriter.flush();
        fileWriter.flush();
        bufferedWriter.close();
        fileWriter.close();
    }
}
