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 GoogleCodeJam2012;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.*;
import java.util.Map.Entry;

public class RecycledNumbers {

	
	public static void main(String[] args) throws IOException {
		InputScanner1 in = new InputScanner1(new File("C-small-attempt0.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));
		
		int t = in.nextInt();
		for (int i = 1; i <= t; i++) {
			
			HashSet<String> set = new HashSet<String>();
			int a = in.nextInt();
			int b = in.nextInt();
			
			for (int n = a; n <= b ; n++) {
				
				String number = ""+n;
				int len = Integer.toString(n).length();
				
				for (int j = 1; j < len ; j++) {
					String temp = number.substring(j) + number.substring(0, j);
					
					int k = Integer.valueOf(temp);
					if( k<=b && n<k && number.length() == Integer.toString(k).length()){
						
						
						set.add(number+" "+k);
					}
				}
				
			}
			
			int result = set.size();
			out.println("Case #"+i+": "+result);
		}
		
	
		out.close();
	}


}


class InputScanner1 {
	BufferedReader br;
	StringTokenizer strtok = null;

	public InputScanner1(InputStream stream) {
		br = new BufferedReader(new InputStreamReader(stream));

	}

	public InputScanner1(File file) throws FileNotFoundException {
		br = new BufferedReader(new FileReader(file));
	}

	public String next() {
		if (strtok == null || !strtok.hasMoreTokens()) {
			try {
				strtok = new StringTokenizer(br.readLine());
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
		return strtok.nextToken();
	}

	public int nextInt() {
		int i;
		try {
			i = Integer.parseInt(next());
		} catch (NumberFormatException e) {
			throw new RuntimeException(e);
		}
		return i;
	}

	public String nextLine() {
		if (strtok == null || !strtok.hasMoreTokens()) {
			try {
				strtok = new StringTokenizer(br.readLine());
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
		return strtok.nextToken("\n").trim();
	}

}