import java.io.*;
import java.util.*;

public class C {

    void solve() throws IOException {
        in("C-large.in"); out("C-large.out");

        long tm = System.currentTimeMillis();
        boolean[] mask = new boolean[2000000];
        int[] r = new int[10];
        int t = readInt();
        for (int cs = 1; cs <= t; ++cs) {
            int a = readInt();
            int b = readInt();
            int ans = 0;
            for (int m = a + 1; m <= b; ++m) {
                char[] d = String.valueOf(m).toCharArray();
                int c = 0;
                for (int i = 1; i < d.length; ++i) {
                    if (d[i] != '0' && d[i] <= d[0]) {
                        int n = 0;
                        for (int j = 0; j < d.length; ++j) {
                            int jj = i + j;
                            if (jj >= d.length) jj -= d.length;
                            n = n * 10 + (d[jj] - '0');
                        }
                        if (n >= a && n < m && !mask[n]) {
                            ++ans;
                            mask[n] = true;
                            r[c++] = n;
                        }
                    }
                }
                for (int i = 0; i < c; ++i) {
                    mask[r[i]] = false;
                }
            }
            println("Case #" + cs + ": " + ans);
            //System.out.println(cs);
        }
        System.out.println("time: " + (System.currentTimeMillis() - tm));
        exit();
    }

    void in(String name) throws IOException {
        if (name.equals("__std")) {
            in = new BufferedReader(new InputStreamReader(System.in));
        } else {
            in = new BufferedReader(new FileReader(name));
        }
    }

    void out(String name) throws IOException {
        if (name.equals("__std")) {
            out = new PrintWriter(System.out);
        } else {
            out = new PrintWriter(name);
        }
    }

    void exit() {
        out.close();
        System.exit(0);
    }

    int readInt() throws IOException {
        return Integer.parseInt(readToken());
    }

    long readLong() throws IOException {
        return Long.parseLong(readToken());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readToken());
    }

    String readLine() throws IOException {
        st = null;
        return in.readLine();
    }

    String readToken() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }

    boolean eof() throws IOException {
        return !in.ready();
    }

    void print(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void println(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void print(Object value) {
        out.print(value);
    }

    void println(Object value) {
        out.println(value);
    }

    void println() {
        out.println();
    }

    StringTokenizer st;

    BufferedReader in;
    PrintWriter out;

    public static void main(String[] args) throws IOException {
        new C().solve();
    }
}

package com.whitecrow.codejam2012.qualification;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.StringTokenizer;

public class C {

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

		String filename = "C-small-attempt0";

		FileReader input;
		FileWriter output;
		try {
			input = new FileReader(filename + ".in");
			output = new FileWriter(filename + ".out");

			BufferedReader reader = new BufferedReader(input);
			BufferedWriter writer = new BufferedWriter(output);

			// String in = "";
			String out = "";

			int T = Integer.parseInt(reader.readLine());

			for (int idx = 0; idx < T; idx++) {
				int result = 0;
				StringTokenizer token = new StringTokenizer(reader.readLine(), " ");

				int a = Integer.parseInt(token.nextToken());
				int b = Integer.parseInt(token.nextToken());
				int length = String.valueOf(a).length();
				for (int i = a; i <= b; i++) {
					ArrayList<Integer> check = new ArrayList<Integer> ();
					for (int j = 1; j < length; j++) {
						int divide = (int) Math.pow(10, j);
						int add = (int) Math.pow(10, length - j);
						int k = i / divide + (i % divide) * add;
						
						if (i < k && a <= i && k <= b && !check.contains(k)) {
							check.add(k);
							//System.out.println(i+", "+k);
							result++;
						}
					}
					// System.out.println(i);
				}

				out = "Case #" + (idx + 1) + ": " + result;
				System.out.println(out);
				writer.write(out + "\n");
			}

			reader.close();
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(0);
		}
	}

}
