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

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class RecycledNumbers {

	public static void main(String[] args) {
		List<String> lines = getline("C:\\Users\\Ami\\Downloads\\C-large.in");
		System.out.println("number of TestCases-->>" + lines.remove(0));
		Process(lines);
	}

	private static void Process(List<String> lines) {
		int i = 1;
		for (String line : lines) {
			int k = 0;
			String[] nums = line.split(" ");
			long A = Long.valueOf(nums[0]);
			long B = Long.valueOf(nums[1]);
			for (long j = A; j < B; j++) {
				String j2 = "" + j;
				for (int x = 1; x <=j2.length(); x++) {
					long num = Long.parseLong(j2.substring(x)
							+ j2.substring(0, x));
					if (num > j && num <= B){
						k++;
						//System.out.println(j2+" : "+num);
					}
						
				}
			}
			System.out.println("Case #" + i + ": " + k);
			i++;
		}

	}

	private static List<String> getline(String path) {
		List<String> ls = new ArrayList<String>();
		try {
			FileInputStream fstream = new FileInputStream(path);
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			while ((strLine = br.readLine()) != null) {
				ls.add(strLine);
			}
			in.close();
		} catch (Exception e) {
			System.err.println("Error: " + e.getMessage());
		}
		return ls;
	}
}
