import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam2012;

/**
 *
 * @author Abdelrahman
 */
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashMap;

public class CaseC {

    public static void main(String[] args) throws FileNotFoundException, IOException {
        File f1 = new File("E:\\new c++\\Google\\codejame 2011\\2012\\inputCodejame.txt");
        BufferedReader reader = new BufferedReader(new FileReader(f1));
        int count = Integer.parseInt(reader.readLine());
        for (int i = 0; i < count; i++) {
            int counter = 0; 
            String line = reader.readLine();
            String[] twoInt = line.split(" ");
            long A = Long.parseLong(twoInt[0]);
            long B = Long.parseLong(twoInt[1]);
            long n = A;
            for (long j = A; j < B; j++) {
                String t = Long.toString(n);
                int len=t.length();
                HashMap<Long,Long> dis=new HashMap<Long, Long>();
                for (int k = 1; k < len; k++) {
                    
                    String t2=t.substring(len-k) + t.substring(0, len-k);
                    long m = Long.parseLong(t2);
                    if (m > n && m <= B &&!dis.containsValue(m)) {
                        dis.put(n, m);
                        counter++;
                    }
                }
                n++;
            }
            System.out.println("Case #" + (i + 1) + ": " + counter);
        }
    }
}
