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.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;


public class Problem2 {
	public static void main (String[] args) throws IOException {
		File file = new File("input1.txt");
		Scanner scan = null;
		try {
			scan = new Scanner(file);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		FileWriter fstream = null;
		try {
			fstream = new FileWriter("output.txt");
		} catch (IOException e) {
			e.printStackTrace();
		}
		BufferedWriter out = new BufferedWriter(fstream);
		
		int lineNumber;
		lineNumber = Integer.parseInt(scan.nextLine());
		for (int i = 0; i < lineNumber; i++) {
			Scanner lineScan = new Scanner(scan.nextLine());
			out.write("Case #" + (i + 1) + ": ");
			int a = lineScan.nextInt();
			int b = lineScan.nextInt();
			int total = 0;
			
			ArrayList<Integer> prev = new ArrayList<Integer>();
			
			for (int j = a; j <= b; j++) {
				String curr = String.valueOf(j);
				
				for (int k = 1; k < curr.length(); k++) {
					String second = curr.substring(k);
					String first = curr.substring(0, k);
					String afterStr = second + "" + first;
					int after = Integer.parseInt(afterStr);
					if (after > j && after <= b) {
						if (!prev.contains(after)) {
							total++;
							prev.add(after);
						}
					}	
				}
				prev.clear();
			}
			out.write(total + " \n");
		}
		out.close();
		
	}

}
