import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
package codejam20120413;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;

public class C {
	int digits(int in) {
		int count=0;
		for (;(in=in/10)>0; count++);
		return count;
	}
	int shift(int in, int mag) {	
		return  mag*(in%10) + in/10;
	}
	void run()throws IOException{
		BufferedReader bf = new BufferedReader(new FileReader("C.in"));
		PrintWriter pw = new PrintWriter(new FileWriter("C.out"));
		
		int cases = Integer.parseInt(bf.readLine());
		for (int i=0; i<cases; i++) {
			String[] s = bf.readLine().split(" ");
			int from = Integer.parseInt(s[0]);
			int to = Integer.parseInt(s[1]);
			int count=0;
			for (int j=from; j<to; j++) {
				int in = j;
				int digits = digits(in);
				int mag = 1;
				for (int k = 0; k < digits; k++) {
					mag = mag*10;
				}
				HashSet<Integer> set = new HashSet<Integer>();
				for (int k = 0; k < digits; k++) {
					int shift = shift(in, mag);
					if (shift>j && shift <= to) {
						if (!set.contains(shift)) {
							set.add(shift);
							count++;
						}
					}
					in=shift;
				}
			}
			pw.write("Case #"+ (i+1) + ": "+ count + "\n");
		}
		pw.close();
	}
		
	public static void main(String[] args)throws IOException {
		new C().run();
	}
	
	
}
