import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication2;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 *
 * @author Prabhath
 */
public class Main {

    public static void main(String[] args) {
        // TODO code application logic here
        Scanner scanner = null;
        PrintWriter writer=null;
        try{
             scanner = new Scanner(new FileInputStream("E:\\c.in"));
        writer=new PrintWriter(new FileOutputStream("E:\\c.out"), true);
        }catch(Exception e){

        }
        int n = Integer.parseInt(scanner.nextLine());
        for (int k = 0; k < n; k++) {
            String temp[]=scanner.nextLine().split(" ");
            int a = Integer.parseInt(temp[0]);
            int b = Integer.parseInt(temp[1]);
            int count = 0;

            for (int i = a; i <= b; i++) {
                for (int j = i + 1; j <= b; j++) {
                    if (check(String.valueOf(i), String.valueOf(j))) {
                        count++;
                    }
                }
            }

            writer.println("Case #"+(k+1)+": "+count);

            

        }
writer.close();




    }

    public static boolean check(String x, String y) {
        String a = "";
        String b = "";

        for (int i = 1; i < x.length(); i++) {
            a = x.substring(0, i);
            b = x.substring(i, x.length());
            if (y.equals(b + a)) {
                return true;
            }
        }
        return false;
    }
}
