/*
 * 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.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;


public class Solver2 {
	public static void main(String[] args) {
		new Solver2();
	
	}
	private Scanner in;
	public Solver2(){
		try {
			in = new Scanner(new File("../Text/C-small-attempt0.in"));
		} catch (FileNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		

		solve();

		in.close();

	}
	public void solve() {
		int cases = in.nextInt();
		ArrayList<Integer> solutions=new ArrayList<Integer>();
		for (int i = 1; i <= cases; i++) {
			int lower=in.nextInt();
			int upper=in.nextInt();
			int amount=0;
			for(int k= lower;k<=upper;k++){//k van lower tot upper
				if(k>=10){
					String iString=String.valueOf(k);
					ArrayList<Integer> allreadyPaired=new ArrayList<Integer>();
					for (int l = 1; l < iString.length(); l++) {
						String shifted=move(l,iString);	
						int reverseInt=Integer.parseInt(shifted);
						if(reverseInt<=upper&&reverseInt>lower&&reverseInt>k){
							if(!allreadyPaired.contains(reverseInt))
								amount++;
							solutions.add(k);
						}
						allreadyPaired.add(reverseInt);
					}
				}
			}
			System.out.println("Case #"+i+": "+amount);
			solutions.clear();
		}
	}

	private String move(int i,String iString) {
		String result="";
		for (int j = 0; j < i; j++) {
			String letter=String.valueOf(iString.charAt(iString.length()-i+j));
			result+=letter;
		} 
		for (int j = 0; j < iString.length()-i; j++) {
			String letter=String.valueOf(iString.charAt(j));
			result+=letter;
		}
		return result;
			
		
		
	}
}
