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

public class ProblemC {
	public static void main(String[] args) {
		/*
		try {
			System.setIn(new FileInputStream("c-example.in"));
		} catch (Exception e) {}
		*/
		new ProblemC();
	}
	
	public ProblemC() {
		Scanner input = new Scanner(System.in);
		int cases = input.nextInt();
		for (int n = 0; n < cases; n++) {
			int lower = input.nextInt();
			int upper = input.nextInt();
			System.out.println("Case #" + (n+1) + ": " + findPairs(lower, upper));
		}
	}
	
	private int findPairs(int lower, int upper) {
		List<Integer> pairs = new ArrayList<Integer>();
		for (int i = lower; i <= upper; i++) {
			List<Integer> p = recycle(i);
			for (int j : p) {
				if (j >= i && j <= upper) {
					pairs.add(j);
					//System.out.println(i + ", " + j);
				}
			}
		}
		return pairs.size();
	}
	
	private List<Integer> recycle(int n) {
		List<Integer> p = new ArrayList<Integer>();
		int m = n;
		int len = Integer.toString(n).length();
		int mult = (int)Math.pow(10, len - 1);
		for (int i = 0; i < len; i++) {
			int d = m % 10;
			m /= 10;
			m += (d * mult);
			if (m != n && len == Integer.toString(m).length() && !p.contains(m)) {
				p.add(m);
			}
		}
		return p;
	}
}
