/*
 * Problem C. Recycled Numbers
 * 
 * Do you ever become frustrated with television because you keep seeing the
 * same things, recycled over and over again? Well I personally don't care about
 * television, but I do sometimes feel that way about numbers.
 * 
 * Let's say a pair of distinct positive integers (n, m) is recycled if you can
 * obtain m by moving some digits from the back of n to the front without
 * changing their order. For example, (12345, 34512) is a recycled pair since
 * you can obtain 34512 by moving 345 from the end of 12345 to the front. Note
 * that n and m must have the same number of digits in order to be a recycled
 * pair. Neither n nor m can have leading zeros.
 * 
 * Given integers A and B with the same number of digits and no leading zeros,
 * how many distinct recycled pairs (n, m) are there with A â¤ n < m â¤ B?
 * 
 * Input
 * 
 * The first line of the input gives the number of test cases, T. T test cases
 * follow. Each test case consists of a single line containing the integers A
 * and B.
 * 
 * Output
 * 
 * For each test case, output one line containing "Case #x: y", where x is the
 * case number (starting from 1), and y is the number of recycled pairs (n, m)
 * with A â¤ n < m â¤ B.
 * 
 * Limits
 * 
 * 1 â¤ T â¤ 50.
 * 
 * A and B have the same number of digits.

Small dataset

1 â¤ A â¤ B â¤ 1000.

Large dataset

1 â¤ A â¤ B â¤ 2000000.

Sample


Input 
 	
Output 
 
4
1 9
10 40
100 500
1111 2222
Case #1: 0
Case #2: 3
Case #3: 156
Case #4: 287
 */

package google.codejam.y2012.qualifications;

import google.codejam.commons.Utils;

import java.io.IOException;
import java.util.StringTokenizer;

/**
 * @author Marco Lackovic <marco.lackovic@gmail.com>
 * @version 1.0, Apr 14, 2012
 */
public class RecycledNumbers {

	private static final String INPUT_FILE_NAME = "C-large.in";
	private static final String OUTPUT_FILE_NAME = "C-large.out";

	public static void main(String[] args) throws IOException {
		String[] input = Utils.readFromFile(INPUT_FILE_NAME);
		String[] output = new String[input.length];
		int x = 0;
		for (String line : input) {
			StringTokenizer st = new StringTokenizer(line);
			int a = Integer.valueOf(st.nextToken());
			int b = Integer.valueOf(st.nextToken());
			System.out.println("Computing case #" + (x + 1));
			output[x++] = "Case #" + x + ": " + recycledNumbers(a, b);
		}
		Utils.writeToFile(output, OUTPUT_FILE_NAME);
	}

	private static int recycledNumbers(int a, int b) {
		int count = 0;
		for (int n = a; n < b; n++) {
			count += getNumGreaterRotations(n, b);
		}
		return count;
	}

	private static int getNumGreaterRotations(int n, int b) {
		int count = 0;
		char[] chars = Integer.toString(n).toCharArray();
		for (int i = 0; i < chars.length; i++) {
			chars = rotateRight(chars);
			if (chars[0] != '0') {
				int m = Integer.valueOf(new String(chars));
				if (n == m) {
					break;
				} else if (n < m && m <= b) {
					count++;
				}
			}
		}
		return count;
	}

	private static char[] rotateRight(char[] chars) {
		char last = chars[chars.length - 1];
		for (int i = chars.length - 2; i >= 0; i--) {
			chars[i + 1] = chars[i];
		}
		chars[0] = last;
		return chars;
	}

}

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

/**
 * 
 */

/**
 * @author alfonzzz
 * 
 */
public class RecycledNumbersSolver {

    /**
     * @param args
     */
    public static void main(String[] args) {
	Scanner in = new Scanner(System.in);
	// Scanner in = getInputScanner();
	int T = in.nextInt();
	for (int i = 1; i <= T; i++) {
	    in.nextLine();
	    int min = in.nextInt();
	    int max = in.nextInt();
	    int result = solve(min, max);
	    System.out.format("Case #%d: %d\n", i, result);
	}
    }

    private static int solve(int min, int max) {
	int result = 0;
	for (int i = min; i <= max; i++) {
	    result += ArrayInt.INSTANCE.setNum(i, min, max);
	}
	result /= 2;
	return result;
    }

    public static enum ArrayInt {

	INSTANCE;

	private char[] backingArray;
	private int orginalNumber;
	private int min;
	private int max;

	private int currentValue;

	private Set<Integer> recycledSet = new HashSet<Integer>();

	public int setNum(int num, int min, int max) {
	    this.orginalNumber = num;
	    this.min = min;
	    this.max = max;
	    backingArray = Integer.toString(num).toCharArray();
	    calculateValue();
	    recycledSet.clear();
	    shiftLeft();
	    int length = length();
	    for (int i = 1; i < length; i++) {
		if (isValid()) {
		    recycledSet.add(value());
		}
		shiftLeft();
	    }

	    return numRecycled();
	}

	private int calculateValue() {
	    currentValue = Integer.parseInt(new String(backingArray));
	    return currentValue;
	}

	public int value() {
	    return currentValue;
	}

	public int length() {
	    return backingArray.length;
	}

	public int numRecycled() {
	    return recycledSet.size();
	}

	public void shiftLeft() {
	    char first = backingArray[0];
	    for (int i = 1; i < backingArray.length; i++) {
		int newPosition = i - 1;
		backingArray[newPosition] = backingArray[i];
	    }
	    backingArray[backingArray.length - 1] = first;
	    calculateValue();
	}

	public boolean isValid() {
	    return !isLeadingZero() && isUnique() && isInRange();
	}

	public boolean isLeadingZero() {
	    return backingArray[0] == '0';
	}

	public boolean isUnique() {
	    if (value() == orginalNumber) {
		return false;
	    }

	    char first = backingArray[0];
	    for (char c : backingArray) {
		if (c != first) {
		    return true;
		}
	    }

	    return false;
	}

	public boolean isInRange() {
	    int value = value();
	    return value >= min && value <= max;
	}

    }

    private static Scanner getInputScanner() {
	Scanner in = null;
	try {
	    in = new Scanner(new File("in.txt"));
	} catch (FileNotFoundException e) {
	    e.printStackTrace();
	}
	return in;
    }

}
