package codejam;

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

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import com.sun.xml.internal.messaging.saaj.packaging.mime.util.LineInputStream;
import sun.tools.tree.ReturnStatement;

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

/**
 * Date: 14/4/12
 * Time: 9:19 AM
 */
public class GoogleFileStream {
    public static ArrayList<String> getInput() throws IOException {
        JFileChooser fc = new JFileChooser();
        fc.showOpenDialog(null);
        File f = fc.getSelectedFile();

        ArrayList<String> ret = new ArrayList<String>();
        LineInputStream lis = new LineInputStream(new FileInputStream(f));
        String line;
        while( (line = lis.readLine()) != null )
        {
            ret.add(line);
        }

        // number of lines:
        ret.remove(0);

        return ret;
    }

    public static void setOutput(ArrayList<String> ret) throws IOException {

        JFileChooser fc = new JFileChooser();
        fc.showSaveDialog(null);
        File f = fc.getSelectedFile();

        StringBuilder sb = new StringBuilder();
        FileWriter fw = new FileWriter(f);
        for( int i = 0; i < ret.size(); i++ )
        {
            sb.delete(0, sb.length());
            sb.append(String.format( "Case #%d: ", i + 1));
            sb.append( ret.get(i) );
            sb.append( "\n" );

            String o = sb.toString();
            fw.write( o );
            System.out.print(o);
        }
        fw.close();
    }
}
