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();
        }

    }
}

//input file must be in.txt in this directory
//output file will be out.txt

import java.io.*;
import java.util.*;
public class C
{
	public static Scanner in;
	public static PrintStream out;
	public static void main(String [] args) throws Throwable
	{
		in = new Scanner(new File("in.txt"));
		int cases = in.nextInt();
		in.nextLine();
		out = new PrintStream(new File("out.txt"));
		for (int i = 1; i <= cases; i++)
		{
			out.print("Case #" + i + ": ");
			printResult();
			out.println();
		}
	}
	public static void printResult()
	{
		int a,b;
		a = in.nextInt();
		b = in.nextInt();
		int i = a;
		int firstDigit = 1;
		int numDigits = 0;
		while (i > 0)
		{
			i /= 10;
			firstDigit *= 10;
			numDigits++;
		}
		int [] alreadyDone = new int[numDigits];
		firstDigit /= 10;
		int cur,m;
		int tot = 0;
		boolean notDone;
		for (i = a; i < b; i++)
		{
			cur = i;
			for (int j = 1; j < numDigits; j++)
				alreadyDone[j] = -1;
			for (int j = 1; j < numDigits; j++)
			{
				m = cur % 10;
				cur = (cur / 10) + (m * firstDigit);
				if (cur > i && cur <= b)
				{
					notDone = true;
					for (int k = 1; k < j; k++)
					{
						if (alreadyDone[k] == cur)
						{
							notDone = false;
							break;
						}
					}
					if (notDone)
					{
						alreadyDone[j] = cur;
						tot++;
					}
				}
			}
		}
		out.print(tot);
	}
}
