import java.util.HashSet;
import java.util.Scanner;

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package google.code.jam.recycled.numbers;

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

/**
 *
 * @author Lucas
 */
public class Utils {
    
    public ArrayList<Integer[]> parse(String file) {

        BufferedReader in = null;
        ArrayList<Integer[]> list = new ArrayList<Integer[]>();
        int size;

        try {

            in = new BufferedReader(new InputStreamReader(new DataInputStream(new FileInputStream(file))));
            size = Integer.parseInt(in.readLine());

            for (int n = 0; n < size; n++) {

                String[] stringCases = in.readLine().split("\\s+");

                Integer[] cases = new Integer[2];
                cases[0] = Integer.parseInt(stringCases[0]);
                cases[1] = Integer.parseInt(stringCases[1]);
                
                list.add(cases);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return list;
    }

    public void write(ArrayList<Integer> output, String file) {

        BufferedWriter out = null;

        try {

            out = new BufferedWriter(new FileWriter(file));

            for (int n = 0; n < output.size() - 1; n++) {
                out.write("Case #" + (n + 1) + ": " + output.get(n));
                out.newLine();
            }
            out.write("Case #" + output.size() + ": " + output.get(output.size() - 1));

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (out != null) {
                    out.flush();
                    out.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
    
}
