import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.io.*;
import java.util.Set;
import java.util.HashSet;

public class Recycler {
	public static void main(String[] args)
		throws IOException, FileNotFoundException {

		StreamTokenizer st = new StreamTokenizer(
				new FileReader(args[0]));

		FileWriter out = new FileWriter(args[1]);

		st.parseNumbers();
		if (st.nextToken() == StreamTokenizer.TT_EOF) eof_error();

		int numTestCases = (int) st.nval;
		int numDistinctPairs = 0;
		boolean twins = false;
		Set<Integer> partners = new HashSet<Integer>();

		for (int t = 0; t < numTestCases; ++t) {

			if (st.nextToken() == StreamTokenizer.TT_EOF) eof_error();
			int A = (int) st.nval;
			if (st.nextToken() == StreamTokenizer.TT_EOF) eof_error();
			int B = (int) st.nval;

			for (int i = A; i < B; ++i) {

				String curNumberString = String.valueOf(i);

				for(int j = 1; j < curNumberString.length(); ++j) {

					String sub1 = curNumberString.substring(j);
					String sub2 = curNumberString.substring(0, j);

					String test = sub1 + sub2;


					if (Integer.valueOf(test) > i &&
							Integer.valueOf(test) <= B) {

						if (! partners.contains(Integer.valueOf(test))) {
							++numDistinctPairs;
							partners.add(Integer.valueOf(test));
						}

					}

				}

				partners.clear();
			}
			out.write("Case #" + (t+1) + ": " + numDistinctPairs + "\n");
			numDistinctPairs = 0;
		}

		out.close();
	}

	private static void eof_error() {
		throw new RuntimeException("Unexpected end of file reached");
	}
}
