/*
 * 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.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.HashSet;


public class RecycledNumbers {
	public static void main(String[] args) throws Exception {
		String sb = null;
		int ans = 0;
		
		BufferedReader is = new BufferedReader(new FileReader(new File("D:\\C-small-attempt0.in")));		
		BufferedWriter os = new BufferedWriter(new FileWriter("D:\\out.txt"));
		os.flush();
		HashSet<String> hs = null;
		int loopIter = Integer.parseInt(is.readLine());
		
		for(int i=0; i<loopIter; i++){
			sb = is.readLine();
			ans = 0;
			hs = new HashSet<String>();
			String x[] = sb.split(" ");
			int start = Integer.parseInt(x[0]);
			int end = Integer.parseInt(x[1]);
			
			for(int j=start; j<=end; j++){
				String h = j + "";
				for(int k=0; k<h.length(); k++){
					h = h.substring(1) + h.substring(0,1);
					int xxx = Integer.parseInt(h);
					if(xxx != j && xxx>= start && xxx <= end){
						//System.out.println("start = " + start + ", end = " + end + ", j = " + j + ", reverse = " + h);
						hs.add("(" + j + "," + h + ")");
						ans++;
					}
				}
			}
			

			if(ans %2 != 0){
				System.out.println("FUCKED! = " + sb);			
			}

			
			os.write("Case #" + (i+1) + ": " + hs.size()/2 + "\n");
			os.flush();
		}
		
		
		
	}
}
