package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.util.Scanner;


public class C {

	public static class N
	{
		public static int[] m_num;
		public static int m_first;
		public static int length;
		
		public static void set(int n)
		{
			String s = Integer.toString(n);
			char[] c = s.toCharArray();
			m_num = new int[c.length];
			m_first = 0;
			for(int i = 0; i < c.length; i++)
			{
				m_num[m_num.length - i - 1] = Character.digit(c[i], 10);
			}
			length = m_num.length;
		}
		
		
		public static int nextNum()
		{
			m_first = (m_first + 1) % m_num.length;
			int ret = 0;
			int mult = 1;
			for(int i = 0; i < m_num.length; i++)
			{
				ret += (mult*m_num[(i+m_first)%m_num.length]);
				mult *= 10;
			}
			return ret;
		}
		
	}
	
	
	public static int[] binom = {0, 0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105};
	
	public static void main(String[] args)
	{
	
		Scanner in = new Scanner(System.in);
		
		int T = in.nextInt();
		
		for(int t = 1; t <= T; t++)
		{
			int A = in.nextInt();
			int B = in.nextInt();
			System.out.println("Case #" + t + ": " + foo(A, B));
		}
	}
	
	public static int foo(int lower, int upper)
	{
		if(upper < 10) return 0;
		
		int counter = 0;
		
		boolean[] checked = new boolean[upper - lower + 1];
		
		for(int i = lower; i <= upper; i++)
		{
			if(checked[i-lower]) continue;
			
			N.set(i);
			
			int items = 0;
			
			for(int j = 0; j < N.length; j++)
			{
				int num = N.nextNum();
				
				if(num < lower || num > upper || checked[num-lower]) continue;
				
				checked[num-lower] = true;
				
				items++;
			}
			
			counter += binom[items];
		}
		
		return counter;
	}
}
