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.*;

public class RecycledNumbers {
	public static void main(String... args) throws Exception {

		BufferedReader br = new BufferedReader(
		new FileReader(System.getProperty("user.home") + "/Desktop/csmall.in")
		//new InputStreamReader(System.in)
		);

		int times = Integer.parseInt(br.readLine());

		for (int i = 0; i < times; i++) {
			numbers(br.readLine(), i+1);
		}

	}

	public static void numbers(String data, int num) {
		int a = Integer.parseInt(data.split(" ")[0]);
		int b = Integer.parseInt(data.split(" ")[1]);
		int count = 0;
		
		for (int n = a; n < b; n++) {
			String nn = n+"";
			for (int m = n+1; m <= b; m++) {
				String mm = m+"";
				if (nn.length() != mm.length()) {continue;}
				
				boolean check = false;
				for (int i = mm.length() - 1; i >= 0; i--) {
					String news = mm.substring(i);
					String newst = news + mm.substring(0, i);
					check = check(nn, newst);
					if (check) {
						count++;
						break;
					}
				}
				
			}
		}
		
		System.out.println("Case #" + num + ": " + count);
	}
	
	public static boolean check(String a, String b) {
		a = Integer.parseInt(a) + "";
		b = Integer.parseInt(b) + "";
		
		if (a.equals(b) || a.length() != b.length()) {
			return false;
		}
		
		String end = "";
		
		for (int i = b.length(); i >= 0; i--) {
			String first = b.substring(i);
			end = first + b.substring(0, i);
			
			if (a.equals(end)) {
				return true;
			}
		}
		
		return false;
	}
}
