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.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

class Main
{

    static int p[] =
    {
        1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000
    };

    static int length(int n)
    {
        int ans = 0;
        while (n > 0)
        {
            ++ans;
            n /= 10;
        }
        return ans;
    }

    static int rotate(int n, int len)
    {
        int d = n % 10;
        n /= 10;
        n = p[len - 1] * d + n;
        return n;
    }

    static void redirect() throws FileNotFoundException
    {
        System.setIn(new FileInputStream("c.in"));
        System.setOut(new PrintStream("c.out"));
    }

    public static void main(String[] args) throws FileNotFoundException
    {

        redirect();

        Scanner in = new Scanner(System.in);
        int tc;
        tc = in.nextInt();
        for (int t = 1; t <= tc; t++)
        {
            int a, b, n, x, y;
            a = in.nextInt();
            b = in.nextInt();
            Set<Pair> s = new TreeSet<Pair>();

            int ans ;
            int len = length(a);
            for (int i = a; i <= b; i++)
            {
                n = i;
                if (i == p[len])
                    len++;

                while (true)
                {
                    n = rotate(n, len);
                    if (n == i)
                        break;
                    if (a <= n && n <= b)
                    {
                        x = i;
                        y = n;
                        if (x > y)
                        {
                            int tmp = x;
                            x = y;
                            y = tmp;
                        }


                        s.add(new Pair(x, y));
                    }
                }
            }

            ans = s.size();

            System.out.printf("Case #%d: %d\n", t, ans);
        }
    }
}

class Pair implements Comparable<Pair>
{
    int x,y;

    public Pair(int x, int y)
    {
        this.x = x;
        this.y = y;
    }

    @Override
    public int compareTo(Pair p)
    {
        if (x != p.x) return x - p.x;
        else return y - p.y;
    }


}
