
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;
import java.io.File;
import java.io.IOException;
import java.io.FileWriter;
import java.io.BufferedWriter;

public class Recycle
{
	public static void main(String[] args)
	{
/*		Set<Integer> perms = getPermutations(123456);
		
		for(Integer i: perms)
			System.out.println(i);*/
	
		try
		{
			Scanner s = new Scanner(new File("recycle.in"));
			BufferedWriter w = new BufferedWriter(new FileWriter(new File("recycle.out")));
			int numCases = s.nextInt();
			s.nextLine();
			
			for(int n = 1;n <= numCases; n++)
			{
				int A = s.nextInt();
				int B = s.nextInt();
				int count = 0;
				for(int k = A; k <= B; k++)
				{
					count += getNumPairs(k, B);
				}
				
				w.write("Case #" + n + ": " + count + "\n");
			}
			
			w.flush();
			w.close();
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}
	}
	
	public static int getNumPairs(int n, int B)
	{
		Set<Integer> possibles = getPermutations(n);
		int count = 0;
		for(Integer i : possibles)
			if(i > n && i <= B)
				count++;
		return count;
	}
	
	public static Set<Integer> getPermutations(int n)
	{
		Set<Integer> perms = new TreeSet<Integer>();
		char[] digits = String.valueOf(n).toCharArray();
		
		for(int firstPos = 1; firstPos < digits.length; firstPos++)
		{
			String toBuild = "";
			for(int k = 0; k < digits.length; k++)
				toBuild += digits[(firstPos + k) % digits.length];
			perms.add(Integer.parseInt(toBuild));
		}
		return perms;
	}
	

}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;


public class Recycled {
	
	private static boolean contains(List<Integer> results, int result){
		for(int i = 0; i < results.size(); i++){
			if(results.get(i) == result){
				return true;
			}
		}
		return false;
	}
	
	public static void main(String[] args) throws IOException {
		BufferedReader f = new BufferedReader(new FileReader("A-small-practice.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("A-small-practice.out")));
	    StringTokenizer st = new StringTokenizer(f.readLine());
	    
	    int tests = Integer.parseInt(st.nextToken());
	    
	    for (int t = 1; t <= tests; t++){
	    	out.printf("Case #%d:", t);
	    	st = new StringTokenizer(f.readLine());
	    	int count = 0;
	    	String a = st.nextToken();
	    	String b = st.nextToken();
	    	
	    	for(int i = Integer.parseInt(a); i < Integer.parseInt(b); i++){	
	    		String m = Integer.toString(i);
	    		for(int j = 1; j < m.length(); j++){
	    			int n = 0;
	    			List<Integer> results = new ArrayList<Integer>();
	    			if(m.length() - j - 1 > 0){ 
	    				n = Integer.parseInt(m.substring(m.length() - j) + m.substring(0, m.length() - j));
	    			} else {
	    				n = Integer.parseInt(m.substring(m.length() - j) + m.charAt(0));
	    			}
	    			
		    		if (n > Integer.parseInt(m) && Integer.parseInt(b) >= n && !contains(results, n)){
		    			results.add(n);
		    			count++;
		    		}
	    		}
	    	}
	    	
	    	out.printf(" %d\n", count);
	    }
	   
	    out.close();
	    System.exit(0);
	}
}
