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);

			}
		}

	}
}

package com.sam.googlecodejam.recyclenumbers;

import java.util.HashSet;
import java.util.Set;

import com.sam.googlecodejam.helper.InputReader;

public class RecycleNumbers {
	long pairCount;

	public void getPairCount(long a, long b) {
		int length = Long.toString(a).length();

		long power = 1;
		for (int i = 1; i < length; i++) {
			power = power * 10;
		}

		for (long m = a; m < b; m++) {
			long value = m;
			Set<Long> pairCountSet = new HashSet<>();
			for (int i = 0; i < length; i++) {
				value = value / 10 + (value % 10) * power;

				if (value > m && value <= b) {

					pairCountSet.add(value);
				}
			}
			pairCount = pairCount + pairCountSet.size();
		}
	}

	public static void main(String[] args) {

		InputReader reader = new InputReader("c://input.in");
		reader.readNextLine(); // read the line number off - we don't need it

		String lineRead = null;
		int i = 1;
		while ((lineRead = reader.readNextLine()) != null) {
			RecycleNumbers recycleNumbers = new RecycleNumbers();

			String values[] = lineRead.split(" ");
			recycleNumbers.getPairCount(Long.parseLong(values[0]),
					Long.parseLong(values[1]));
			System.out.println("Case #" + i + ": " + recycleNumbers.pairCount);
			i++;
		}
	}
}
