package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.util.*;
import static java.lang.Math.*;

public class C {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		for(int zz = 1; zz <= T; zz++) {
			int A = in.nextInt();
			int B = in.nextInt();
			long ans = 0;
			for (int n = A; n <= B; n++) {
				String s = n+"";
				HashSet<String> used = new HashSet<String>();
				for (int r = 0; r <= s.length(); r++) {
					String t = s.substring(r) + s.substring(0, r);
					int m = Integer.valueOf(t);
					if (A <= m && m <= B && n < m && t.charAt(0) != '0' && s.charAt(0) != '0' && !used.contains(t)) {
						used.add(t);
						ans++;
					}
				}
			}
			System.out.format("Case #%d: %d\n", zz, ans);
		}
	}
}
