/*
 * 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.*;
import java.util.*;

public class Recycled {

	public static void main(String[] args) {
		BufferedReader input = null;
		BufferedWriter output = null;
		try {
			input = new BufferedReader(new FileReader("C:\\Users\\cerebrus\\eclipse-workspace\\QualiC-Recycled\\src\\C-small-attempt0.in"));
			output = new BufferedWriter(new FileWriter("C:\\Users\\cerebrus\\eclipse-workspace\\QualiC-Recycled\\src\\C-small-attempt0.out"));
			
			int T = Integer.valueOf(input.readLine());
		    for(int i=1; i<=T; i++) {
		    	String nums[] = input.readLine().split(" ");
		    	int A = Integer.valueOf(nums[0]);
		    	int B = Integer.valueOf(nums[1]);
		    	output.write("Case #"+i+": ");
		    	
		    	if(A<10 || B<10)
		    		output.write("0");
		    	else if ((A == B) || (A > B))
		    		output.write("0");
		    	else {
		    		int count = 0;
		    		for(int j=A; j<B; j++) {
		    			String temp1 = Integer.toString(j);
		    			String temp = temp1 + temp1;
		    			Set<Integer> matches = new HashSet<Integer>();
		    			for(int k=1; k<temp1.length(); k++) {
		    				int m = Integer.valueOf(temp.substring(k, k+temp1.length()));
		    				if((m>j) && (m<=B))
		    					matches.add(m);
		    			}
		    			count += matches.size();
		    		}
		    		output.write(String.valueOf(count));
		    	}	
		        
		    	if(i<T) output.write("\n"); 
		    }
		    
		    
		} catch (FileNotFoundException e) {
			System.out.println("input file not found: ");
			e.printStackTrace();
		} catch(IOException e) {
			System.out.println("Error opening files: ");
		    e.printStackTrace();
		    System.exit(1);
		} finally {
			try {
				input.close();
				output.close();
				System.out.println("Done !!");
			} catch (IOException e) {
				System.out.println("Error closing files: ");
				e.printStackTrace();
			}
		}

	}

}
