import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
package qualif3;

import java.io.File;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Qualif3 {
	
	public static void main(String[] args) throws Exception {
		
		Scanner scan = new Scanner(new File("input"));
		
		int num = Integer.parseInt(scan.nextLine());
		
		for (int i = 1; i <= num; i++) {
			int a = scan.nextInt();
			int b = scan.nextInt();
			System.out.println("Case #" + i + ": " + solve(a, b));
		}
		
	}

	private static int solve(int a, int b) {
		if (b < 21) return 0;
		if (a < 12) a = 12;
		
		Set<String> founds = new HashSet<String>();
		
		for (int num = a; num <= b; num++) {
			int tens = 10;
			int digits = ((int) Math.log10(num));
			int inv = (int) Math.pow(10, digits);
			
			while (num / tens > 0) {
				int q = num / tens;
				int r = num % tens;
				
				int test = r * inv + q;
				if (test > num && test <= b) {
					founds.add("" + num + "|" + test);
				}
				
				inv /= 10;
				tens *= 10;
			}
		}
		
		return founds.size();
	}
	
}

