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 jwalinpandya;

import java.io.*;
import java.util.*;

/**
 * @author Jwalin Pandya
 */
public class RecycledNumbers {

	public static void main(String[] args) {
		try {
			String inputFilename = System.getProperty("user.dir")
					+ System.getProperty("file.separator") + "C-small-attempt0.in";

			String outputFilename = System.getProperty("user.dir")
					+ System.getProperty("file.separator") + "C-small-attempt0.out";

			ArrayList<String> input = new ArrayList<String>();
			SortedSet<String> numbersFound = new TreeSet<String>();

			FileInputStream fstream = new FileInputStream(inputFilename);
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine = "";

			while ((strLine = br.readLine()) != null) {
				input.add(strLine);
			}
			in.close();

			System.out.println("Input:");
			for (int i = 0; i < input.size(); i++)
				System.out.println(input.get(i));

			System.out
					.println("\n------------------------------------------\n");

			// write to file
			FileWriter fwriter = new FileWriter(outputFilename);
			BufferedWriter bwriter = new BufferedWriter(fwriter);

			System.out.println("Output");
			for (int i = 1; i < input.size(); i++) {
				String inputVal[] = input.get(i).split(" ");

				int A = Integer.parseInt(inputVal[0]);
				int B = Integer.parseInt(inputVal[1]);

				System.out.print("Case #" + i + ": ");
				bwriter.write("Case #" + i + ": ");

				for (int num = A; num <= B; num++) {
					for (int j = 1; j < (num + "").length(); j++) {
						String xStr = (num + "").substring(j);
						String yStr = (num + "").substring(0, j);

						int x = Integer.parseInt(xStr);
						int y = Integer.parseInt(yStr);

						String yxStr = xStr + "" + yStr;
						int yx = Integer.parseInt(yxStr);

						if (yx != num)
							if (checkNumber(yx, A, B)) {
								numbersFound.add("["+ num + ", " + yx + "]");
							}
					}
				}
				System.out.print(numbersFound.size()/2 + "");
				bwriter.write(numbersFound.size()/2 + "");
				numbersFound.clear();

				System.out.println();
				bwriter.newLine();
			}
			bwriter.close();
			System.out.println("Check output file..");

		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static boolean checkNumber(int x, int A, int B) {
		boolean checked = false;
		if (x >= A && x <= B)
			checked = true;
		return checked;
	}

	public static void printArray(String arr[]) {
		for (int i = 0; i < arr.length; i++) {
			System.out.print(arr[i] + " ");
		}
	}
}
