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();
	}

}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam2012;

/**
 *
 * @author Abdelrahman
 */
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashMap;

public class CaseC {

    public static void main(String[] args) throws FileNotFoundException, IOException {
        File f1 = new File("E:\\new c++\\Google\\codejame 2011\\2012\\inputCodejame.txt");
        BufferedReader reader = new BufferedReader(new FileReader(f1));
        int count = Integer.parseInt(reader.readLine());
        for (int i = 0; i < count; i++) {
            int counter = 0; 
            String line = reader.readLine();
            String[] twoInt = line.split(" ");
            long A = Long.parseLong(twoInt[0]);
            long B = Long.parseLong(twoInt[1]);
            long n = A;
            for (long j = A; j < B; j++) {
                String t = Long.toString(n);
                int len=t.length();
                HashMap<Long,Long> dis=new HashMap<Long, Long>();
                for (int k = 1; k < len; k++) {
                    
                    String t2=t.substring(len-k) + t.substring(0, len-k);
                    long m = Long.parseLong(t2);
                    if (m > n && m <= B &&!dis.containsValue(m)) {
                        dis.put(n, m);
                        counter++;
                    }
                }
                n++;
            }
            System.out.println("Case #" + (i + 1) + ": " + counter);
        }
    }
}
