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.FileNotFoundException;
import java.util.Formatter;
import java.util.HashSet;
import java.util.Scanner;

public class RecycledNumbers {

	private static String solve(int A, int B) {
		int count = 0;
		final HashSet<Integer> seen = new HashSet<Integer>(10);
		for (int n = A; n < B; n++) {
			// Find number of decimal digits.
			int nTemp = n, digits = 0, unit = 1;
			while (nTemp > 0) {
				digits++;
				nTemp /= 10;
				unit *= 10;
			}
			unit /= 10;

			int m = n;
			seen.clear();
			for (int i = 1; i < digits; i++) {
				if (m % 10 == 0) {
					// Don't process because there will be a leading zero.
					m /= 10;
				} else {
					m = (unit * (m % 10)) + (m / 10);
					if (m > n && m <= B && !seen.contains(m)) {
						seen.add(m);
						count++;
					}
				}
			}
		}

		return "" + count;
	}

	public static void main(String[] args) throws FileNotFoundException {
		//String filename = "C-test.in";
		//String filename = "C-small-attempt0.in";
		String filename = "C-large.in";
		assert filename.endsWith(".in");
		Scanner in = new Scanner(new File(filename));
		Formatter out = new Formatter(new File(filename.replace(".in", ".out")));

		assert in.hasNext();
		int T = in.nextInt();
		in.nextLine();
		for (int t = 0; t < T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			String ans = solve(A, B);

			String result;
			if (t < T - 1)
				result = String.format("Case #%d: %s%n", t + 1, ans);
			else
				result = String.format("Case #%d: %s", t + 1, ans);
			out.format(result);
			System.out.format(result);
		}

		out.flush();
		out.close();
	}

}
