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

class B
{
	public static void main(String[] args) 
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader("B.in"));
			PrintWriter pw = new PrintWriter(new FileWriter("B.out"));
			int X = Integer.parseInt(br.readLine());

			for(int i=0; i<X; i++)
			{
				String[] S = br.readLine().split(" ");
				int A = Integer.parseInt(S[0]);
				int B = Integer.parseInt(S[1]);
				int R = 0;

				int x = 1;
				int n = 0;
				while(A/x > 0) {
					n++;
					x *= 10;
				}

				for(int j=A; j<B; j++) {
					Set<Integer> seen = new HashSet<Integer>();
					for(int k=1; k<n; k++) {
						int p1 = j % (int)Math.pow(10, k);
						int p2 = (int) Math.pow(10, n-k);
						int p3 = j / (int)Math.pow(10, k);
						int y = p1*p2 + p3;
						
						if(j < y && !seen.contains(y) && y <= B) {
							seen.add(y);
							R++;
						}
					}
				}

				pw.printf("Case #%d: %d\n", i+1, R);
				pw.flush();
			}
		}
		catch(Exception e)
		{ 
			e.printStackTrace();
		}
	}
}

package codejam.qualification;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;

public class Recycled {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException {
		String file = "input3big";
		Scanner in = new Scanner(new File(file));
		int tot = Integer.parseInt(in.nextLine());
//		System.out.println(tot);
		for(int i=0;i<tot;i++) {
			String line = in.nextLine();
			String[] data = line.split(" ");
			int A = Integer.parseInt(data[0]);
			int B = Integer.parseInt(data[1]);
			
			int output = 0;
			for(int j=A; j<=B; j++) {
//				System.out.println("("+j+")");
				String s = j+"";
				output += countRecycled(s, B);
			}
			
			System.out.println("Case #"+(i+1)+": "+output);			
		}

}

	private static int countRecycled(String s, int B) {
		ArrayList<String> rec = new ArrayList<String>();
		int count = 0;
		
		for(int i=s.length()-1; i>0; i--) {
			String r = s.substring(i) + s.substring(0, i);
//			System.out.println(r);
			int s_int = Integer.parseInt(s);
			int r_int = Integer.parseInt(r);
			if(r.charAt(0) != 0 && s_int < r_int && r_int <= B && !isIn(r,rec)) {
//				System.out.println("ok: "+s+"\t"+r);
				count++;
				rec.add(r);
			}
		}

		return count;
	}

	private static boolean isIn(String r, ArrayList<String> rec) {
		for(String r2 : rec)
			if(r.equals(r2))
				return true;
		return false;
	}
}