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.Scanner;
import java.util.*;

public class B {
	public static int reverse(int a, int b) {
		Vector vec = new Vector();
		Vector vec2 = new Vector();
		int result = 0;
		if(a > 9) {
			for(int i=a; i <= b; i++) {
				String x=i+"";
				for(int j = 1; j < x.length();j++) {
					int status = 0;
					String p =(x.substring(j,x.length()))+x.substring(0,j);
					int num2 = Integer.parseInt(p);
					if(i!=num2 && num2 <= b && num2 >=a) {
						//System.out.println("P VALUE >> " + p);
						//System.out.println("INDEX OF"+x+" : "+vec.indexOf(x));
						for(int k = 0; k < vec.size(); k++) {
							String tmp = (String) vec.elementAt(k);
							String tmp2 = (String) vec2.elementAt(k);
							int c = Integer.parseInt(tmp);
							int d = Integer.parseInt(tmp2);
							if((c == num2 && i == d) || (c==i && d == num2)) {
								status = 1; break;
							}
						}
						if(status == 0) {
							vec.add(x);
							vec2.add(p);
							//System.out.println(">>>"+x+" "+p);
							result++;
						}
					}
				}
			}
		}
		return result;
	}
	
	public static void main(String [] args) {
		File fFile = new File("B.in");
		Scanner scanner = null;
    	try {
    		scanner = new Scanner(new FileReader(fFile));
      		//first use a Scanner to get each line
      		int line = 1;
      		while ( scanner.hasNextLine() ){
        		String name = scanner.nextLine();
        		String []x = name.split(" ");
        		int p1 = Integer.parseInt(x[0]);
        		int p2 = Integer.parseInt(x[1]);
        		System.out.println("Case #"+line+": "+reverse(p1,p2));
        		line++;
      		}
    	}
    	catch(Exception ex) {
    	}
    	finally {
      		scanner.close();
    	}
	}
}