
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.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Scanner;


public class CodeJamWriter implements ICounterZeroEvent{
	
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\A-test";
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\A-small-attempt0";
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\B-test";
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\B-small-attempt0";
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\B-large";
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\C-test";
	public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\C-small-attempt0";
	//public static String inputFile = "C:\\Users\\user\\Desktop\\coejam\\2012-Qualificaton\\C-large";
	
	public int T;
	public Result[] results;

	public static void main(String[] args) {
		CodeJamWriter codeJamWriter = new CodeJamWriter();
		codeJamWriter.readInput();
	}

	private void readInput() {
		Scanner scanner = null;
		File input = new File(inputFile+".in");
		try {
			scanner = new Scanner(input);
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		T = scanner.nextInt();
		scanner.nextLine();
		results = new Result[T+1];
		Counter counter = new Counter(T, this);
		for (int i=1;i<=T;++i)
		{
			results[i] = new Result(i);
			Question q = new QuestionC(results[i], counter);
			q.readInput(scanner);
			q.start();
		}
		scanner.close();	
	}

	private void writeOutput() {
		FileOutputStream fos = null;
		PrintStream printer = null;
		File output = new File(inputFile+".out");
		try {
			fos = new FileOutputStream(output);
			printer = new PrintStream(fos);
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		for (int i=1;i<=T;++i)
		{
			printer.println(results[i]);
		}
		System.out.println("FINISHED!!!");
		
		printer.close();
		
	}

	@Override
	public void fireEvent() {
		writeOutput();		
	}
	
}
