
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.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Scanner;

/**
 *
 * @author dafferianto
 */
public class RecycledNumbers {
    private static Scanner inputStream;
    private static PrintWriter outputStream;
    private static int T, lower, upper, counter, tempNumber, result;
    private static String numberString, tempNumberString;
    private static HashMap<Integer, Integer> aHashMap;
    public static void main(String[] args) throws FileNotFoundException, IOException {
        try {
            inputStream = new Scanner(new FileReader(args[0]));
            outputStream = new PrintWriter(new FileWriter("RecycledNumbersOutput.txt"));
            
            T = inputStream.nextInt();
            //T = Integer.parseInt(inputStream.nextLine());
            
            for (int i = 0; i < T; i++) { // For each test case
                lower = inputStream.nextInt();
                upper = inputStream.nextInt();
                aHashMap = new HashMap<Integer, Integer>();
                //result = solve(lower, upper);
                //outputStream.println("Case #" + (i+1) + ": " + result);
                outputStream.println("Case #" + (i+1) + ": " + solve(lower, upper));
                //System.out.println("Case #" + (i+1) + ": " + result);
            }
            
        } finally {
                if (inputStream != null) {
                    inputStream.close();
                }
                if (outputStream != null) {
                    outputStream.close();
                }
        }
    }

    private static int solve(int lower, int upper) {
        counter = 0;
        for (int currentNumber = lower; currentNumber <= upper; currentNumber++) {
            if (aHashMap.containsKey(currentNumber)) {
                continue;
            }
            counter += process(currentNumber);
        }
        return counter;
    }
    
    private static int process(int aNumber) {
        int localCounter = 0;
        numberString = Integer.toString(aNumber);
        for (int i = numberString.length()-1; i > 0; i--) {
            if (Character.getNumericValue(numberString.charAt(i)) == 0) {
                continue;
            }
            tempNumberString = numberString.substring(i) + numberString.substring(0, i);
            tempNumber = Integer.parseInt(tempNumberString);
            if (tempNumber == aNumber) {
                continue;
            }
            if (aHashMap.containsKey(tempNumber)) {
                continue;
            }
            if ((tempNumber >= lower) && (tempNumber <= upper)) {
                localCounter++;
                aHashMap.put(tempNumber, tempNumber);
                //System.out.println(tempNumber);
            }
        }
        if (localCounter != 0) {
            aHashMap.put(aNumber, aNumber);
            //System.out.println(aNumber);
        }
        if (localCounter > 1) {
            return sumOfSequence(localCounter);
        }
        return localCounter;
    }

    private static int sumOfSequence(int aCounter) {
        int tempSum = 0;
        for (int i = 1; i <= aCounter; i++) {
            tempSum += i;
        }
        return tempSum;
    }
}
