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 rotatematrix;
import java.io.*;
/**
 *
 * @author FARHAN
 */
public class Main {

    /**
     * @param args the command line arguments
     */


    public static void main(String[] args) throws FileNotFoundException, IOException{
        // TODO code application logic here
      FileInputStream fstream = new FileInputStream("D:/test.in");
  // Get the object of DataInputStream
  DataInputStream in = new DataInputStream(fstream);
  BufferedReader br = new BufferedReader(new InputStreamReader(in));
  String strLine;
  //Read File Line By Line
 Combination c = new Combination();
 
  while ((strLine = br.readLine()) != null)   {
  // Print the content on the console
       int testCaseCount = Integer.parseInt(strLine);

       for(int i=0;i<testCaseCount;i++){
       strLine = br.readLine();
     String [] strArray = strLine.split(" ");

      int result= c.Tranverse(Integer.parseInt(strArray[0]), Integer.parseInt(strArray[1]));
           System.out.println("Case #"+(i+1)+": "+result);
      }

  }

 // System.out.println (strLine);
  
  //Close the input stream
  in.close();
   



    }

}
