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();
	}

}
// Mario Morales

import java.util.*;
import java.io.*;

public class p3{
  public static void main(String[] args) throws Exception{
  	BufferedReader f = new BufferedReader(new FileReader("input3small.txt"));
  	PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("answer3small.txt")));

    //Brute Force Solution
    int t = Integer.parseInt(f.readLine()); //# of test cases
    StringTokenizer st;
    int a, b, d, res;
    String aNew;
    for(int i=0; i<t; i++){
        st = new StringTokenizer(f.readLine());
        a = Integer.parseInt(st.nextToken());//bounds
        b = Integer.parseInt(st.nextToken());
        d = (""+a).length();//number of digits
        res = 0;

        for(int a1=a; a1<b; a1++){
            for(int b1=a1+1; b1<=b; b1++){
                //move n rightmost digits
                for(int n=1; n<d; n++){
                    aNew = (""+a1).substring(d-n, d) + (""+a1).substring(0, d-n);
                    if(aNew.equals(""+b1)){
                        res++;
                        break;
                    }
                }
            }
        }
    	out.println("Case #" + (i+1) + ": " + res);
    }

    out.close();
    System.exit(0);
  }
}
