import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
/*
 * Anand Oza
 * Apr 14, 2012
 */

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

public class C_RecycledNumbers {
	public static void main(String[] args) throws IOException {
		long startTime = System.nanoTime();
		BufferedReader reader = new BufferedReader(new FileReader("C_RecycledNumbers.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C_RecycledNumbers.out")));
		StreamTokenizer in = new StreamTokenizer(reader);

		in.nextToken();
		int T = (int) in.nval;
		for (int testcase = 1; testcase <= T; testcase++) {
			in.nextToken();
			int A = (int) in.nval;
			in.nextToken();
			int B = (int) in.nval;

			int ans = 0;
			for (int n = A; n <= B; n++) {
				String s = String.valueOf(n);
				Set<Integer> mvalues = new HashSet<Integer>();
				for (int i = 0; i < s.length(); i++) {
					int m = Integer.parseInt(s.substring(i) + s.substring(0, i));
					if (m > n && m <= B && m >= A)
						mvalues.add(m);
				}
				ans += mvalues.size();
			}

			out.format("Case #%d: %d%n", testcase, ans);
		}

		out.close();
		System.out.println("Time (ms): " + (double) (System.nanoTime() - startTime) / 1000000);
		System.exit(0);
	}
}
