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.math.BigInteger;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;


public class C {
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		int t = sc.nextInt();
		for (int i = 0; i < t; i++) System.out.printf("Case #%d: %s\n", i + 1, exec());
	}
	
	public static String exec() {
		long now = System.currentTimeMillis();
		int a = sc.nextInt();
		int b = sc.nextInt();
		BigInteger result = BigInteger.ZERO;
		
		Set<Integer> x = new HashSet<Integer>();
		for (int i = a; i < b; i++) {
			x.clear();
			String s = String.valueOf(i);
			for (int j = 1; j < s.length(); j++) {
				String q = s.substring(j) + s.substring(0, j);
				int qs = Integer.valueOf(q);
				if (qs <= i) continue;
				if (qs > b) continue;
				boolean success = x.add(qs);
				if (success) result = result.add(BigInteger.ONE);
			}
		}
		
		long taken = System.currentTimeMillis() - now;
//		System.err.println("TIME TAKEN: " + taken + " -- * 50 = " + (50 * taken) + " -- 8 min = " + (1000L * 60 * 8));
		return result.toString();
	}
}
