/*
 * 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;
    }

}

/*
PROG: ProbC
2012 Google CodeJam Qualification Round
Problem C
*/

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

public class Prob1C{

	public static void main(String [] args) throws IOException {
		//long start = System.currentTimeMillis();
		BufferedReader f = new BufferedReader(new FileReader("Prob1C.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("Prob1C.txt")));
		int N = Integer.parseInt(f.readLine());
		for(int i = 0; i < N; i++){
			String[] str = (f.readLine()).split(" ");
			int A = Integer.parseInt(str[0]);
			int B = Integer.parseInt(str[1]);
			int m = (int)Math.log10(A);
			int count = 0;
			for(int j = A; j <= B; j++){
				Set<Integer> set = new HashSet<Integer>();
				for(int k = 1; k <= m; k++){
					int mod = (int)Math.pow(10, k);
					int lod = (int)Math.pow(10, m - k + 1);
					int r = j % mod;
					int l = j / mod;
					int trans = r * lod + l;
					if(A <= trans && trans <= B && trans != j){
						if(set.add(trans))
							count++;
					}
				}
			}
			out.println("Case #" + (i+1) + ": " + count/2);
		}
		//long end = System.currentTimeMillis();
		//System.out.println(end - start);
		out.close();
	}
	

}
