
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.util.Scanner;

public class Test {
	public static void main(String[] args) {
		Scanner sin = new Scanner(System.in);
		int cases, a, b;
		int[] ans;

		cases = sin.nextInt();
		ans = new int[cases];
		for (int i = 0; i < cases; i++) {
			int count = 0;

			a = sin.nextInt();
			b = sin.nextInt();

			for (int j = a; j <= b; j++) {
				String ori = String.valueOf(j);
				int[] temp = new int[ori.length() - 1];
				int tempIndex = 0;

				for (int k = 1; k < ori.length(); k++) {
					String newStr = ori.substring(k, ori.length())
							+ ori.substring(0, k);
					int newInt;
					boolean skip = false;

					if (newStr.charAt(0) == '0')
						continue;

					newInt = Integer.parseInt(newStr);

					for (int m = 0; m < tempIndex; m++)
						if (temp[m] == newInt) {
							skip = true;
							break;
						}

					if (skip == false)
						temp[tempIndex++] = newInt;
					else
						continue;

					if (j < newInt && newInt >= a && newInt <= b)
						count++;
				}
			}
			ans[i] = count;
		}

		for (int i = 0; i < cases; i++)
			System.out.println("Case #" + (i + 1) + ": " + ans[i]);
	}
}