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

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}

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

public class Solution {
	FastScanner in;
	PrintWriter out;

	int doFromStr(String s, int k) {
		int ans = 0;
		for (int i = k; i < s.length(); i++) {
			ans = ans * 10 + s.charAt(i) - '0';
		}
		for (int i = 0; i < k; i++) {
			ans = ans * 10 + s.charAt(i) - '0';
		}
		return ans;
	}
	
	public void solve() throws IOException {
		int cases = in.nextInt();
		for (int nowCase = 1; nowCase <= cases; nowCase++) {
			int a = in.nextInt();
			int b = in.nextInt();
			long ans = 0;
			for (int x = a; x < b; x++) {
				ArrayList <Integer> add = new ArrayList<Integer>();
				String s = (new Integer(x)).toString();
				for (int k = 1; k < s.length(); k++) {
					int newVal = doFromStr(s, k);
					boolean newV = true;
					if (newVal > x && newVal <= b) {
						for (int i = 0; i < add.size(); i++) {
							if (add.get(i) == newVal) newV = false;
						}
						if (newV) add.add(newVal);
					}
				}
				ans += add.size();
			}
			//
			out.print("Case #");
			out.print(nowCase);
			out.print(": ");
			//
			out.print(ans);
			//
			out.println();
		}
	}

	public void run() {
		try {
			in = new FastScanner(new File("c.in"));
			out = new PrintWriter(new File("c.out"));

			//in = new FastScanner(System.in);
			//out = new PrintWriter(System.out);

			solve();

			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	class FastScanner {
		BufferedReader br;
		StringTokenizer st;

		FastScanner(File f) {
			try {
				br = new BufferedReader(new FileReader(f));
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			}
		}

		FastScanner(InputStream f) {
			br = new BufferedReader(new InputStreamReader(f));
		}

		String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			return st.nextToken();
		}
		
		String readLine() {
			try {
				return br.readLine();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			return " ";
		}

		int nextInt() {
			return Integer.parseInt(next());
		}
	}

	public static void main(String[] arg) {
		new Solution().run();
	}
}