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);
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package pkg2012codejam;

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

/**
 *
 * @author Nimos
 */
public class QuestionC {

    public static void main(String args[]) {
        try {
            File input = new File("C:\\Users\\Nimos\\Desktop\\INPUTS\\2012\\C-small-attempt0(1).in");
            FileReader fr = new FileReader(input);
            BufferedReader br = new BufferedReader(fr);
            PrintWriter out = new PrintWriter(new File("C:\\Users\\Nimos\\Desktop\\INPUTS\\2012\\C-small-ans.in"));
            String no = br.readLine();
            int number = Integer.parseInt(no);
            for (int h = 0; h <= number - 1; h++) {
                int done =0;
                String nos = br.readLine();
                String[] n = nos.split(" ");
                int s = Integer.parseInt(n[0]);
                int e = Integer.parseInt(n[1]);
                int size = n[0].length();
               // ArrayList al = new ArrayList();
                
                for (int i=s;i<=e;i++){
                    String t = Integer.toString(i);
                    for (int j = 1;j<size;j++){
                        t= t.substring(1,size)+t.substring(0,1);
                        //System.out.print(j+" ");
                        int k = Integer.parseInt(t);
                        if (k>i && k<=e && k>=s){
                            done++;
                            //System.out.println(done + " " + i);
                            //al.add(t); 
                        }
                                                
                    }
                }

                int m = 1 + h;
                String ans = "Case #" + m + ": " + done;
                out.println(ans);
                out.flush();

            }


            br.close();
            out.close();

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

        }
    }

}
