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.BufferedReader;
import java.io.BufferedWriter;
import java.io.Console;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;


public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		//Load file
		ArrayList<String> in = null;
		try {
			in = readFile("input.txt");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		String result = doit(Integer.parseInt(in.remove(0)), in);

		try {
			writeFile(result, "output.txt");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public static ArrayList<String> readFile(String filename) throws IOException{

		ArrayList<String> out = new ArrayList<String>();

		// Open the file that is the first 
		// command line parameter
		FileInputStream fstream = new FileInputStream(filename);
		// Get the object of DataInputStream
		DataInputStream in = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(in));
		String strLine;
		//Read File Line By Line
		while ((strLine = br.readLine()) != null){
			// Print the content on the console
			out.add(strLine);
		}

		//Close the input stream
		in.close();

		return out;
	}

	public static String doit(int c, ArrayList<String> cases){
		// Main logic
		
		StringBuilder out = new StringBuilder();

		for(int i = 0; i < c; i++){
			String s = cases.get(i);		
			ArrayList<Integer> sa = new ArrayList<Integer>();
			for(String l : s.split(" ")){
				sa.add(Integer.parseInt(l));
			}
			
			int A = sa.get(0);
			int B = sa.get(1);
			int recycles = 0;
			
			String t = "";
			int size = (A+"").length();
			for(int n = A; n <= B; n++){				
				t = n+"";
				ArrayList<Integer> passed = new ArrayList<Integer>(); 
				for(int l = 1; l < size; l++){
					int m = Integer.parseInt(t.substring(l)+t.substring(0, l));
					if(n >= m || m > B){
						continue;
					}
					
					if(passed.contains(m)){
						continue;
					}
					recycles++;
					passed.add(m);
				}
			}
			
			out.append("Case #"+(i+1)+": "+recycles);

			if(i != c-1){
				out.append("\n");
			}
		}

		return out.toString();
	}

	public static void writeFile(String output, String file) throws IOException{
		FileWriter fstream = new FileWriter(file);
		BufferedWriter out = new BufferedWriter(fstream);
		out.write(output);
		out.close();
	}

}
