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.*;
import java.io.*;

public class C {
	public static void main(String[] args) {
		try 
		{
			Scanner input = new Scanner(new FileReader("C.in"));
			PrintWriter output = new PrintWriter(new FileWriter("C.out"));
			try
			{
				int i = Integer.parseInt(input.nextLine());
				for(int j=0; j<i; j++)
				{
					int num = j+1;
					int a = input.nextInt();
					int b = input.nextInt();
					output.println("Case #" + num + ": " + recycle(a, b));
				}
			}
			catch(Exception ex) { System.out.println("Error"); }
			finally
			{
				input.close();
				output.close();
			}
		}
		catch(Exception ex) { System.out.println("Error"); }
	}
	
	public static String recycle(int a, int b)
	{
		int num = 0;
		for(int i=a; i<=b; i++)
		{
			for(int j=i+1; j<=b; j++)
			{
				if(recycled(i,j)) num++;
			}
		}
		
		return Integer.toString(num);
	}
	
	public static boolean recycled(int i, int j)
	{
		String a = Integer.toString(i);
		String b = Integer.toString(j);
		
		int check = 1;
		while(check<a.length())
		{
			char temp = b.charAt(b.length()-1);
			b = temp + b.substring(0, b.length()-1);
			if(a.equals(b)) 
			{
				System.out.println(i + " " + j);
				return true;	
			}
			check++;
		}
		return false;
	}
}