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.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;

public class ProblemC {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		BufferedReader br = null;
		BufferedWriter bw = null;
		String input = null;
		StringBuffer output = null;
		String[] twonumbers = null;
		int min = 0, max = 0;
		ArrayList<String> list = null;
		String temp = null;
		String strmin = "";
		int tempint = 0;
		int counter = 0;
		int digit1 = 0, digit2 = 0;
		try {
			br = new BufferedReader(new FileReader(new File(
					"C:/Users/DHAVAL/Downloads/Input1.txt")));
			bw = new BufferedWriter(new FileWriter("output1.txt"));
			int count = Integer.parseInt(br.readLine());
			for (int i = 0; i < count; i++) {
				input = br.readLine();
				output = new StringBuffer("Case #" + (i + 1) + ": ");
				counter=0;
				// logic here
				list = new ArrayList<String>();
				twonumbers = input.split(" ");
				min = Integer.parseInt(twonumbers[0]);
				max = Integer.parseInt(twonumbers[1]);
				if (max >= 10) {
					for (int j = min; j <= max; j++) {
						strmin = "" + j;
						temp = strmin;
						for (int k = 0; k < strmin.length() - 1; k++) {
							temp = temp.substring(1) + temp.charAt(0);
							tempint = Integer.parseInt(temp);
							digit1 = ("" + tempint).length();
							digit2 = strmin.length();
							if (j < tempint && digit1 == digit2
									&& tempint >= min && tempint <= max
									&& !list.contains(strmin + "||" + temp)
									&& !temp.equals(strmin)) {
								//System.out.println(strmin + " " + tempint);
								// list.add(temp);
								list.add(strmin + "||" + temp);
								counter++;
							}
						}
					}
				}
				bw.write(output.toString() + counter);
				bw.newLine();
			}
			bw.close();
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

}
