/*
 * 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.io.PrintStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;


public class main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			System.setOut(new PrintStream(new File("C-small-attempt0.out")));
			
			Scanner sc = new Scanner(new File("C-small-attempt0.in"));
			
			int T = sc.nextInt();
			sc.nextLine();
			
			for (int t = 1; t<=T; t++) {
				int y = 0;
				int A = sc.nextInt();
				int B = sc.nextInt();
				
				for (int n = A; n<B; n++) {
					String s = Integer.toString(n);
					
					for (int j = 1; j < s.length(); j++) {
						String s2 = s.substring(j, s.length()) + s.substring(0, j);
						int m = Integer.parseInt(s2);
						if(n<m && m<=B) {
							y++;							
						}
					}
				}
				
				System.out.format("Case #%d: %d%n", t, y);
			}
			
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}		
	}

}
