import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {

	private RecycledNumbers() {

	}

	public void solveInput(final InputStream input, final OutputStream output)
			throws IOException {

		final BufferedReader reader = new BufferedReader(new InputStreamReader(
				input));
		final BufferedWriter writer = new BufferedWriter(
				new OutputStreamWriter(output));

		final int numTestCase = Integer.valueOf(reader.readLine().trim());

		System.out.println("Total Test Cases: " + numTestCase);

		String line = null;
		int caseNo = 1;
		while ((line = reader.readLine()) != null) {
			final String[] words = line.trim().split(" ");

			final long A = Long.parseLong(words[0]);
			final long B = Long.parseLong(words[1]);

			final Set<String> resultSet = new HashSet<String>();

			for (long M = B; M >= A; M--) {
				final String str1 = String.valueOf(M);
				if (str1.length() == 1) {
					continue;
				}
				for (int max = str1.length() - 1; max >= 1; max--) {
					final String first = str1.substring(0, str1.length() - max);
					final String last = str1.substring(str1.length() - max,
							str1.length());

					final String str2 = last + first;
					final long N = Long.valueOf(str2);

					if (A <= N && N < M && M <= B && str1.charAt(0) != '0'
							&& str2.charAt(0) != '0') {

						/*
						 * System.out.println(A + " <= " + N + "(" + str2 +
						 * ") < " + M + "(" + str1 + ") <= " + B);
						 */
						resultSet.add(str1 + str2);
					}
				}
			}

			if (caseNo > 1) {
				writer.write("\n");
			}

			final String text = "Case #" + (caseNo++) + ": " + resultSet.size();
			System.out.println(text);
			writer.write(text);
			writer.flush();
		}
		writer.close();
		reader.close();
	}

	public static void main(final String[] args) throws Exception {
		final RecycledNumbers number = new RecycledNumbers();

		final File outputFile = new File("output/C-small-attempt0.out");
		if (outputFile.exists()) {
			outputFile.delete();
		}
		final FileOutputStream fos = new FileOutputStream(outputFile);

		number.solveInput(SpeakingInTongues.class
				.getResourceAsStream("C-small-attempt0.in"), fos);

	}

}
