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 java.util.Scanner;

//"c:\Program Files\Java\jdk1.6.0_25\bin\javac.exe"  a.java
//"c:\Program Files\Java\jdk1.6.0_25\bin\java.exe"  a <test.in >test.out
public class C {

	public static String meth1 (String s){
		String res = "";
		res=res+s;
		
	return res;	  
	}
	//"c:\Program Files\Java\jdk1.6.0_25\bin\javac.exe"  A.java
	//"c:\Program Files\Java\jdk1.6.0_25\bin\java.exe"  A <test.in >test.out
	 static Scanner sc = new Scanner(System.in);
	 public static void main(String[] args) {
	  int cases  ;
	  int res;
	 int m=0;
	   
	  String tmp;
	
	  cases =  Integer.parseInt(sc.nextLine());  
	  int A,B;
	  String buff;
	  for(int id = 1; id <= cases; id++){
		  res=0;
		  buff="";
		   A = sc.nextInt();
		   B = sc.nextInt();sc.nextLine();
			  for (int i = A;i<=B;i++){
				tmp = i+"";
				for(int j =1;j<tmp.length();j++){
		 m = Integer.parseInt(tmp.substring(j,tmp.length() )+tmp.substring(0, j));
		
			if (m>i&&m<=B)
				if(!buff.contains( tmp+"#"+m)){
					res++;
					buff+= tmp+"#"+m+")(";
				}
				}

			  }
		  
		  
		  System.out.printf("Case #%d: %d%n", id, res);
	 
	  }
	 }
}