package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class RN {

	static ArrayList<Character> str2list(String s) {
		ArrayList<Character> r = new ArrayList<Character>();
		for (char c : s.toCharArray()) {
			r.add(c);
		}
		return r;
	}

	static String list2str(ArrayList<Character> cs) {
		StringBuilder builder = new StringBuilder(cs.size());
		for (Character c : cs)
			builder.append(c);
		return builder.toString();
	}

	static ArrayList<String> cycles(String s) {
		ArrayList<Character> cs = str2list(s);

		ArrayList<String> res = new ArrayList<String>();

		for (int i = 0; i < cs.size(); i++) {
			Collections.rotate(cs, 1);
			res.add(list2str(cs));
		}
		
		HashSet<String> hs = new HashSet<String>(res);
		return new ArrayList<String>(hs);
	}

	static void log(String fs, Object... args) {
		System.err.println(String.format(fs, args));
	}

	public static void main(String[] args) throws FileNotFoundException {
		String filename = "src/C-large.in";
		Scanner sc = 
				new Scanner(
						new FileInputStream(
								new File(filename)));
		PrintWriter pw = 
				new PrintWriter(
						new FileOutputStream(
								new File(filename + ".result")));

		int N = sc.nextInt();
		for (int task = 1; task <= N; task++) {
			int A = sc.nextInt();
			int B = sc.nextInt();

			int cnt = 0;
			for (int i = A; i <= B; i++) {
				String s = Integer.toString(i);
				for (String r : cycles(s)) {
					int n = Integer.parseInt(r);
					if (n >= A && n <= B && r.charAt(0) != '0' && !r.equals(s)) {
						cnt++;
					}
				}
			}
			pw.println(String.format("Case #%d: %d", task, cnt / 2));
		}
		pw.close();
	}

}
