/*
 * 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.*;

public class Main {
	public static void main(String[] args) {
		Main m = new Main();
		try {
			FileInputStream fstream = new FileInputStream("C-small-attempt2.in");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine = br.readLine();
			int x = Integer.parseInt(strLine);
			int result;
			String[] a;
			for (int j = 0; j < x; j++) {
				System.out.print("Case #" + (j + 1) + ": ");
				strLine = br.readLine();
				a = strLine.split(" ");
				result = 0;
					int first = Integer.parseInt(a[0]);
					int second = Integer.parseInt(a[1]);
					
					for (int i = first; i < second; i++) {
						for (int k = i + 1; k <= second; k++) {

							boolean b = m.check(i + "", k + "");
							if (b)
								result++;
						}
					}
				System.out.println(result);
			}
			in.close();
		} catch (Exception e) {// Catch exception if any
			System.err.println("error");
		}
	}

	private boolean check(String i, String k) {
		boolean b = false;

		for (int j = k.length() - 1; j >= 0; j--) {

			k = k.charAt(k.length() - 1) + "" + k.substring(0, k.length() - 1);

			if (k.equalsIgnoreCase(i)) {
				b = true;
				break;
			}
			if (b) break;
		}

		return b;
	}
}