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 qual2012;

import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class C {

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in);
		//PrintWriter out = new PrintWriter(System.out);
		PrintWriter out = new PrintWriter(new FileWriter("C.out"));

		for (int t = in.nextInt(), cs = 1; t > 0; t--, cs++) {
			out.print("Case #" + cs + ": ");
			int a = in.nextInt(), b = in.nextInt();
			long ans = 0;
			for (int i = a; i <= b; i++) {
				ans += go(i, a);
			}
			out.println(ans);
		}
		
		out.flush();
	}

	static long go(int x, int low) {
		String s = x + "";
		Set<Integer> set = new HashSet<Integer>();
		for (int i = 1; i < s.length(); i++) {
			String w = s.substring(i) + s.substring(0, i);
			if (w.startsWith("0")) continue;
			int y = Integer.valueOf(w);
			if (low <= y && y < x) set.add(y);
		}
		return set.size();
	}
}
