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 googleJam;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashSet;
import java.util.Scanner;

public class RecycledNumbers 
{

	public static void main(String[] args) 
	{
		Scanner scan = null;
		try
		{
			scan = new Scanner(new File(args[0]));
		}
		catch (FileNotFoundException e)
		{
			System.err.println("File not found!");
			return;
		}
		if (!scan.hasNext())
		{
			System.err.println("Nothing in File!");
			return;
		}
		int testCases = Integer.parseInt(scan.nextLine());
		int lower;
		int upper;
		int move;
		int d;
		int total;
		int zeroes;
		int num = 1;
		int first;
		HashSet<Integer> set;
		while(scan.hasNext())
		{
			System.out.print("Case #" + num + ": ");
			total = 0;
			lower = scan.nextInt();
			upper = scan.nextInt();
			for (int x = lower; x <= (upper); x++)
			{
				set = new HashSet<Integer>();
				zeroes = 1;
				move = x;
				while (move > 9)
				{
					move = move/10;
					zeroes = zeroes * 10;
				}
				int limit = zeroes;
				for(int n = 10; n < (limit*10); n = n * 10)
				{

					move = x/n;
					d = x % n;
					d = d * zeroes;
					d = d + move;
					zeroes = zeroes / 10;
					if (d < x && d >= lower && !set.contains(d) && d > 9)
					{
						total++;
						//System.out.println(d + " , " + x);
						set.add(d);
					}
				}
			}
			num++;
			System.out.print(total);
			if (scan.hasNext())
			{
				System.out.println();				
			}
		}
	}

}
