import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;

public class ProblemC {

	public static void main(String[] args) throws FileNotFoundException {
		start();
	}

	public static void start() throws FileNotFoundException {
		File file = new File("./");
		String name = "";
		for (File f : file.listFiles()) {
			if (f.getName().endsWith(".in")) {
				name = f.getName().replaceFirst("\\.in", "");
				break;
			}
		}
		Scanner in = new Scanner(new File(name + ".in"));
		PrintWriter out = new PrintWriter(new File(name + ".out"));
		long startTime = System.nanoTime();
		new Solution(in, out);
		System.out.println("\n" + (System.nanoTime() - startTime)
				* Math.pow(10, -9) + " seconds");
		out.close();
	}

	public static class Solution {

		public Solution(Scanner in, PrintWriter out) {
			int cases = in.nextInt();
			in.nextLine();
			for (int i = 1; i <= cases; i++) {
				String answer = "Case #" + i + ": " + compute(in.nextLine());
				out.println(answer);
				System.out.println(answer);
			}
		}

		private int compute(String s) {
			Scanner sc = new Scanner(s);
			int a = sc.nextInt();
			int b = sc.nextInt();
			int digits = (a + "").length();
			HashSet<String> answer = new HashSet<String>();
			for (int shiftCount = 1; shiftCount < digits; shiftCount++) {
				for (int n = a; n <= b; n++) {
					String nString = n + "";
					String mString = nString.substring(shiftCount, digits)
							+ nString.substring(0, shiftCount);
					int m = Integer.parseInt(mString);
					if (a <= n && n < m && m <= b) {
						answer.add(nString+mString);
					}
				}
			}

			return answer.size();
		}
	}
}
