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 pl.helman.codejam.recycled;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

//Brute force attempt
public class Recycled {

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

		FileReader fr = new FileReader("d:\\recycled.in");
		BufferedReader br = new BufferedReader(fr);
		String s = br.readLine();

		FileWriter f0 = new FileWriter("d:\\recycled.out");

		int t = Integer.parseInt(s.trim());

		for (int i = 1; i <= t; i++) {
			s = br.readLine();
			String[] elems = s.split(" ");
			int a = Integer.parseInt(elems[0]);
			int b = Integer.parseInt(elems[1]);

			int digs = 1;
			int mod = 1;

			int ret = 0;

			while (a >= mod * 10) {
				digs++;
				mod *= 10;
			}

			for (int n = a; n <= b; n++) {
//				System.out.println("  n:"+n);
				int m = n;
				m = (m % mod) * 10 + (m / mod);
				while (m != n) {
				
//					System.out.print("    m:" + m);
					if (m > n && m <= b) {
						ret++;
//						System.out.print(" +");
					}
//					System.out.println();
					
					m = (m % mod) * 10 + (m / mod);
				}

			}

			System.out.println("Case #" + i + ": " + ret);
//			System.out.println();

			f0.write("Case #" + i + ": " + ret + "\r\n");
		}

		fr.close();
		f0.close();

	}

}
