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.File;
import java.io.PrintWriter;

import java.util.HashSet;
import java.util.Scanner;

/**
 * User: Sasha
 * Date: 09.04.12
 * Time: 19:13
 */
public class Main {
    private Scanner sc;
    private PrintWriter wr;
    
    private void prepare() throws Exception {
        sc = new Scanner(new File("C:\\Projects\\C-small-attempt0.in"));
        File file = new File("C:\\Projects\\out.txt");
        wr = new PrintWriter(file);
//        wr = new PrintWriter(System.out);
    }
    
    private void solve() {
        int n = sc.nextInt();

        for (int i = 0; i < n; ++i) {
            HashSet<String> set = new HashSet<String>();

            wr.print(String.format("Case #%d: ", (i + 1)));

            int a, b;
            a = sc.nextInt();
            b = sc.nextInt();

            int res = 0;
            for (int j = a; j < b; ++j) {
                res += cnt(j, a, b, set);
            }
            wr.println(res);
        }

        wr.flush();
    }

    private int cnt(int c, int left, int right, HashSet<String> set) {
        int res = 0;
        String s = "" + c;
        for (int i = 0; i < s.length() - 1; ++i) {
            String t = s.substring(i + 1) + s.substring(0, i + 1);
            int d = Integer.parseInt(t);
            if (left <= d && d <= right && c < d && s.length() == ("" + d).length()) {
                if (set.contains(s + t)) continue;
                set.add(s + t);
                ++res;
            }
        }
        return res;
    }

    public static void main(String args[]) throws Exception {
        Main main = new Main();
        
        main.prepare();
        
        main.solve();
    }
}
