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

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.Writer;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;


public class RecycledNumbers {

	public static void main(String[] args) {

		if (args.length != 2) {
			System.out.println("Usage: java RecycledNumbers <input-file> <output-file>");
			System.exit(0);
		}
		
		try {
			
			RecycledCounter counter = 
					new RecycledCounter(new FileReader(args[0]), new FileWriter(args[1]));
			counter.count();
			
		} catch (Exception e) {
			
			System.out.println("Sorry, there was a fatal error:");
			e.printStackTrace();
			System.exit(0);
		}
	}
}

class RecycledCounter {
	
	private final BufferedReader reader;
	private final PrintWriter writer;
	
	public RecycledCounter(Reader in, Writer out) throws IOException {
		
		reader = new BufferedReader(in);
		writer = new PrintWriter(out);
	}
	
	public void count() throws IOException {
		
		String line = reader.readLine();
		int numTests = Integer.parseInt(line);
		
		for (int i = 0; i < numTests; i++) {
			
			line = reader.readLine();
			writer.printf("Case #%d: %s", i + 1, countNumberOfRecycledPairs(line));
			writer.println();
		}
		
		writer.flush();
		writer.close();
		reader.close();
	}
	
	public int countNumberOfRecycledPairs(String line) {
		
		String[] tokens = line.split(" ");
		int a = Integer.parseInt(tokens[0]);
		int b = Integer.parseInt(tokens[1]);
		
		int y = 0;
		Set<String> distinct = new HashSet<String>();
		
		for (; a <= b; a++) {
			
			if (a < 10) {
				continue;
			}
			
			String num = String.valueOf(a);
			for (int i = num.length() - 1; i > 0; i--) {
				String recycledNum = num.substring(i) + num.substring(0, i);
				if (recycledNum.startsWith("0")) {
					continue;
				}
				int recycled = Integer.valueOf(recycledNum);
				if (recycled >= a && recycled <= b && a < recycled && !distinct.contains(num + recycledNum)) {
					distinct.add(num + recycledNum);
					y++;
				}
			}
		}
		
		return y;
	}
}
