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 qual2012;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;

public class Kattio extends PrintWriter {
	public Kattio(InputStream i) {
		super(new BufferedOutputStream(System.out));
		r = new BufferedReader(new InputStreamReader(i));
	}

	public Kattio(InputStream i, OutputStream o) {
		super(new BufferedOutputStream(o));
		r = new BufferedReader(new InputStreamReader(i));
	}

	public boolean hasMoreTokens() {
		return peekToken() != null;
	}

	public int getInt() {
		return Integer.parseInt(nextToken());
	}

	public double getDouble() {
		return Double.parseDouble(nextToken());
	}

	public long getLong() {
		return Long.parseLong(nextToken());
	}

	public String getWord() {
		return nextToken();
	}


	private BufferedReader r;
	private String line;
	private StringTokenizer st;
	private String token;

	private String peekToken() {
		if (token == null)
			try {
				while (st == null || !st.hasMoreTokens()) {
					line = r.readLine();
					if (line == null) return null;
					st = new StringTokenizer(line);
				}
				token = st.nextToken();
			} catch (IOException e) {
			}
		return token;
	}

	private String nextToken() {
		String ans = peekToken();
		token = null;
		return ans;
	}
}