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

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

package com.google.codejam;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumberSolver {

	public static int countRecycledNumber(int start, int end) {
		int count = 0;
		int numOfDigits = String.valueOf(start).length();
		Set<String> numberSet = new HashSet<String>(end - start + 1);
		
		for (int i = start; i <= end; i++) {
			numberSet.add(String.valueOf(i));
		}
		
		while(numberSet.isEmpty() == false) {
			Set<String> rotateList = new HashSet<String>(numOfDigits);
			String targetValue = numberSet.iterator().next();
			rotateList.add(targetValue);
			
			char[] buf = new char[numOfDigits * 2];		
			for (int i = 0; i < numOfDigits; i++) {
				buf[i] = buf[i + numOfDigits] = targetValue.charAt(i);
			}
			
			for (int i = 1; i < numOfDigits; i++) {
				if (buf[i] != '0') {
					String rotateValue = String.valueOf(buf, i, numOfDigits);
					int value = Integer.parseInt(rotateValue);
					if (value >= start && value <= end) {
						rotateList.add(rotateValue);
					}
				}
			}
			
			numberSet.removeAll(rotateList);
			if (rotateList.size() > 1) {
//				System.err.printf("rotate set: %s%n", rotateList.toString());
				count += rotateList.size() * (rotateList.size() - 1) / 2;
			}
		}
		
		return count;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

//		System.out.println("answer = " + RecycledNumberSolver.countRecycledNumber(10, 40));
		
		Scanner scanner = new Scanner(System.in);
		int totalCount = Integer.parseInt(scanner.nextLine());
		
		for (int i = 0; i < totalCount; i++) {
			String[] inputs = scanner.nextLine().split(" ");
			int answer = RecycledNumberSolver.countRecycledNumber(Integer.parseInt(inputs[0]), Integer.parseInt(inputs[1]));
			System.out.printf("Case #%d: %d%n", i+1, answer);
		}
		
	}

}
