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));
	}
}

package practice;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.LinkedList;

public class Main {

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

		final String tmp = "Case #";
		BufferedReader in = new BufferedReader(new FileReader(new File(
				"C-small-attempt0.in")));
		//BufferedReader in2 = new BufferedReader(new InputStreamReader(System.in));
		int tc = Integer.parseInt(in.readLine());
		for (int i = 0; i < tc; i++) {
			String[] s = in.readLine().split(" ");
			int a = Integer.parseInt(s[0]);
			int b = Integer.parseInt(s[1]);
			int c = 0;
			for (int n = a; n <= b; n++) {
				String str = n + "";
				int len = str.length();
				for(int j = 1; j < len; j++) {
					int num = Integer.parseInt(str.substring(len - j) + str.substring(0, len - j));
					if(n < num && num <= b && len == String.valueOf(num).length()) {
						++c;
					}
				}
			}
			System.out.println(tmp + (i + 1) + ": " + c);
		}
	}
}
