import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package codejam;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception {

		String fileName = "RecycledNumbers.large.txt";
		System.setIn(new FileInputStream("data/input/" + fileName));
		System.setOut(new PrintStream(new FileOutputStream("data/output/"
				+ fileName)));
		
		Scanner scanner = new Scanner(System.in);
		int testCases = scanner.nextInt();
		for (int i = 1; i <= testCases; i++) {
			Set<String> result = new HashSet<String>();
			int a = scanner.nextInt();
			int b = scanner.nextInt();
			for (int j = a; j <= b; j++) {
				String n = String.valueOf(j);
				if (n.length() > 0) {
					for (int x = n.length() - 1; x > 0; x--) {
						String m = n.substring(x) + n.substring(0, x);
						if (!m.startsWith("0") && Integer.valueOf(n) >= a
								&& Integer.valueOf(n) < Integer.valueOf(m)
								&& Integer.parseInt(m) <= b) {
							result.add(n + "," + m);
						}
						// System.out.println(n + "," + m + "_countOfResult:"
						// + result.size());
					}
				}
			}
			System.out.println("Case #" + i + ": " + result.size());
		}

	}

}
