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.*;
import java.util.*;

public class RN {
	private static String fileName = RN.class.getSimpleName().replaceFirst("_.*", "");
	private static String inputFileName = "D:\\santosh\\cj12\\"+fileName + ".in";
	private static String outputFileName = "D:\\santosh\\cj12\\"+fileName + ".out";
	private static Scanner in;
	private static PrintWriter out;
	 
	
	private static int rotateAndCount(int num, int b, HashMap<String, String> map) {
		String str1 = new Integer(num).toString();
		char[] arr = str1.toCharArray();
		int len = arr.length;
		if(len <= 1) {
			return 0;
		}
		int cnt = 0;
		String str = str1 + str1;
		for (int i = 0; i < len-1; i++) {
              char ch = arr[len - 1];
              for (int j = len - 1; j > 0; j--) {
            	  arr[j] = arr[j - 1];
              }
              arr[0] = ch;
              String str2 = new String(arr);
              int c2 = Integer.parseInt(str2);
              if(c2 != num && (c2 >= num) && (c2 <= b) && str.contains(str2)) {
            	  if(!map.containsKey(str1+","+str2)) {
            		  map.put(str1+","+str2, null);
            		  cnt ++;
            	  }
              }
        }
		return cnt;
	}

	public static void main(String[] args) throws IOException {
		Locale.setDefault(Locale.US);
		if (args.length >= 2) {
			inputFileName = args[0];
			outputFileName = args[1];
		}
		in = new Scanner(new FileReader(inputFileName));
		out = new PrintWriter(outputFileName);
		int tests = in.nextInt();
		//in.nextLine();
		int a, b;
		HashMap<String, String> map;
		for (int t = 1; t <= tests; t++) {
			a = in.nextInt();
			b = in.nextInt();
			map = new HashMap<String, String>();
			System.out.println("A == "+a+" B =="+ b);
			int totalCnt = 0;
			while(a <= b) {
				totalCnt += rotateAndCount(a, b, map);
				a++;
			}
			System.out.println("Case #" + t + ": "+totalCnt);
			out.println("Case #" + t + ": "+totalCnt);
		}
		in.close();
		out.close();
	}
}

