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.DataInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		FileInputStream fstream = null;

		try {
			fstream = new FileInputStream(args[0]);
			//fstream = new FileInputStream("input.txt");
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			System.out.println("Input File Not Found.");
			System.exit(1);
		}

		DataInputStream in = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(in));

		int lines = 0;

		try {
			lines = Integer.parseInt(br.readLine());
		} catch (NumberFormatException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		BufferedWriter out = null;
		
		try {
			// Create file
			FileWriter outstream = new FileWriter("output.txt");
			out = new BufferedWriter(outstream);
			
		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}

		String line[] = null;
		Integer numberA;
		Integer numberB;
		String sN;
		String sM;
		int m;


		for (int i = 1; i <= lines; i++) {
			try {
				line = br.readLine().split("\\s+");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			numberA = Integer.parseInt(line[0]);
			numberB = Integer.parseInt(line[1]);
			String parte1;
			String parte2;

			//System.out.println("Number A is " + numberA + " and number B is "
			//		+ numberB);

			int counter = 0;
			for (int n = numberA; n < numberB; n++) {

				sN = Integer.toString(n); // Aqui temos o número n (n,m)

				HashSet<Integer> respostas = new HashSet<Integer>();

				for (int pos = (sN.length() - 1); pos >= 0; pos--) {
					parte1 = sN.substring(pos);
					parte2 = sN.substring(0, pos);

					sM = parte1.concat(parte2); // Transformado
					m = Integer.parseInt(sM);

					if (numberA <= n && n < m && m <= numberB) {
						// System.out.println(sNumberA + " <= " + n + " < " + m
						// + " <= " + sNumberB);
						// counter++;
						respostas.add(m);
					}

				}
				counter += respostas.size();
			}

			System.out.println("Case #" + i + ": " + counter);
			try {
				out.write("Case #" + i + ": " + counter + "\n");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}



		try {
			out.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}
