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 test3;

import java.io.*;
import java.util.LinkedList;
import java.util.Scanner;

/**
 *
 * @author Student
 */
public class Test3 {

    public static int rotations(int number, int max) {


        int l = 0;
        int start = number;
        int numdigits = (int) Math.log10((double) number); 
        int multiplier = (int) Math.pow(10.0, (double) numdigits);
        while (true) {
            int q = number / 10;
            int r = number % 10;
            number = number / 10;
            number = number + multiplier * r;
            if (number > start && Integer.toString(number).length() == numdigits + 1 && number <= max) {
                l++;
            }
            if (number == start) {
                break;
            }

        }
        return l;
    }
    
    public static int possibilities(int A, int B){
        int K = 0;
        for (int i = A; i <= B; i++) {
            K += rotations(i,B);
        }
        return K;
    }

    public static void main(String[] args) throws FileNotFoundException {
        // TODO code application logic here
        
        int i=1;
        int max = 0;
        Scanner ss=new Scanner(new File("C-small-attempt1.in.txt"));
        PrintWriter x=new PrintWriter(new File("C-small-attempt1.out.txt"));
        if(ss.hasNext()) max=Integer.parseInt(ss.next());
        while(ss.hasNextLine()&&i<=max){
            int A = 0;
            if(ss.hasNext()) A=Integer.parseInt(ss.next());
            int B = 0;
            if(ss.hasNext()) B=Integer.parseInt(ss.next());
            x.println("Case #"+i+": "+possibilities(A, B));
            i++;
        }
        x.close();
        }
    }
