import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
import java.io.*;
import java.util.*;
import java.math.*;

class C
{
	private static final boolean DEBUG_ON = true;
	private static final boolean ECHO_ON = true;

	private static BufferedReader input;
	private static BufferedWriter output;

	private static final int INF = Integer.MAX_VALUE / 2;
	private static final int MOD = 10007;

	public static void main(String[] args)
	{
		try
		{
			input = new BufferedReader(new FileReader(args[0]  + ".in"));
			output = new BufferedWriter(new FileWriter(args[0] + ".out"));

			String line = input.readLine();
			int testcases = getInt(line, 0);

			for (int testcase = 1; testcase <= testcases; testcase++)
			{
				line = input.readLine();
				int A = getInt(line, 0);
				int B = getInt(line, 1);

				HashSet<Long> set = new HashSet<Long>();

				for (int N = A; N < B; N++)
				{
					String s = String.valueOf(N);
					for (int i = 1; i < s.length(); i++)
					{
						String s1 = s.substring(0, i);
						String s2 = s.substring(i, s.length());
						int M = Integer.parseInt(s2+s1);
						if ((N < M) && (M <= B))
						{
							long key = N;
							key <<= 32;
							key += M;
							set.add(key);
						}
					}
				}

				String result = "Case #" + testcase + ": " + set.size();
				output(result);
			}

			input.close();
			output.close();
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
	}

	public static int getInt(String line, int index) {return Integer.parseInt(getString(line, index));}
	public static long getLong(String line, int index) {return Long.parseLong(getString(line, index));}
	public static double getDouble(String line, int index) {return Double.parseDouble(getString(line, index));}
	public static String getString(String line, int index)
	{
		line = line.trim();
		while (index > 0) {line = line.substring(line.indexOf(' ') + 1); index--;}

		if ((-1) == line.indexOf(' ')) {return line;}
		else {return line.substring(0, line.indexOf(' '));}
	}

	public static int[] getIntArray(String line)
	{
		String[] strings = getStringArray(line);
		int[] numbers = new int[strings.length];
		for (int i = 0; i < strings.length; i++) {numbers[i] = Integer.parseInt(strings[i]);}
		return numbers;
	}
	public static long[] getLongArray(String line)
	{
		String[] strings = getStringArray(line);
		long[] numbers = new long[strings.length];
		for (int i = 0; i < strings.length; i++) {numbers[i] = Long.parseLong(strings[i]);}
		return numbers;
	}
	public static double[] getDoubleArray(String line)
	{
		String[] strings = getStringArray(line);
		double[] numbers = new double[strings.length];
		for (int i = 0; i < strings.length; i++) {numbers[i] = Double.parseDouble(strings[i]);}
		return numbers;
	}
	public static String[] getStringArray(String line) {return line.trim().split("(\\s)+", 0);}

	public static int[] getIntArray(String line, int begin, int end)
	{
		String[] strings = getStringArray(line, begin, end);
		int[] numbers = new int[end - begin];
		for (int i = begin; i < end; i++) {numbers[i - begin] = Integer.parseInt(strings[i - begin]);}
		return numbers;
	}
	public static long[] getLongArray(String line, int begin, int end)
	{
		String[] strings = getStringArray(line, begin, end);
		long[] numbers = new long[end - begin];
		for (int i = begin; i < end; i++) {numbers[i - begin] = Long.parseLong(strings[i - begin]);}
		return numbers;
	}
	public static double[] getDoubleArray(String line, int begin, int end)
	{
		String[] strings = getStringArray(line, begin, end);
		double[] numbers = new double[end - begin];
		for (int i = begin; i < end; i++) {numbers[i - begin] = Double.parseDouble(strings[i - begin]);}
		return numbers;
	}
	public static String[] getStringArray(String line, int begin, int end)
	{
		String[] lines = line.trim().split("(\\s)+", 0);
		String[] results = new String[end - begin];
		for (int i = begin; i < end; i++) {results[i - begin] = lines[i];}
		return results;
	}

	public static char[][] getCharMatrix(BufferedReader input) throws Exception
	{
		String line = input.readLine();
		int R = getInt(line, 0);
		int C = getInt(line, 1);
		char[][] matrix = new char[R][C];
		for (int i = 0; i < R; i++)
		{
			line = input.readLine();
			for (int j = 0; j < C; j++) {matrix[i][j] = line.charAt(j);}
		}
		return matrix;
	}
	public static int[][] getIntMatrix(BufferedReader input) throws Exception
	{
		String line = input.readLine();
		int R = getInt(line, 0);
		int C = getInt(line, 1);
		int[][] matrix = new int[R][C];
		for (int i = 0; i < R; i++)
		{
			line = input.readLine();
			for (int j = 0; j < C; j++) {matrix[i][j] = getInt(line, j);}
		}
		return matrix;
	}

	public static boolean[][] newBooleanMatrix(int R, int C, boolean value)
	{
		boolean[][] matrix = new boolean[R][C];
		for (int i = 0; i < R; i++) for(int j = 0; j < C; j++) {matrix[i][j] = value;}
		return matrix;
	}
	public static char[][] newCharMatrix(int R, int C, char value)
	{
		char[][] matrix = new char[R][C];
		for (int i = 0; i < R; i++) for(int j = 0; j < C; j++) {matrix[i][j] = value;}
		return matrix;
	}
	public static int[][] newIntMatrix(int R, int C, int value)
	{
		int[][] matrix = new int[R][C];
		for (int i = 0; i < R; i++) for(int j = 0; j < C; j++) {matrix[i][j] = value;}
		return matrix;
	}
	public static long[][] newLongMatrix(int R, int C, long value)
	{
		long[][] matrix = new long[R][C];
		for (int i = 0; i < R; i++) for(int j = 0; j < C; j++) {matrix[i][j] = value;}
		return matrix;
	}
	public static double[][] newDoubleMatrix(int R, int C, double value)
	{
		double[][] matrix = new double[R][C];
		for (int i = 0; i < R; i++) for(int j = 0; j < C; j++) {matrix[i][j] = value;}
		return matrix;
	}

	public static void output(String s) throws Exception
	{
		if (ECHO_ON) {System.out.println(s);}
		output.write(s);
		output.newLine();
	}

	public static String toKey(boolean[] array)
	{
		StringBuffer buffer = new StringBuffer(array.length + ",");
		for (int i = 0; i < array.length / 16; i++)
		{
			char c = 0;
			for (int j = 0; j < 16; j++)
			{
				c <<= 1; if (array[i * 16 + j]) {c += 1;}
			}
			buffer.append(c + "");
		}
		char c = 0;
		for (int j = 0; j < (array.length % 16); j++)
		{
			c <<= 1; if (array[(array.length / 16) * 16 + j]) {c += 1;}
		}
		buffer.append(c + "");
		return buffer.toString();
	}
	public static String toKey(int[] array, int bit)
	{
		StringBuffer buffer = new StringBuffer(array.length + ",");
		if (bit > 16)
		{
			for (int i = 0; i < array.length; i++)
			{
				char c1 = (char)(array[i] >> 16);
				char c2 = (char)(array[i] & 0xFFFF);
				buffer.append("" + c1 + c2);
			}
		}
		else
		{
			int n = 16 / bit;
			for (int i = 0; i < array.length / n; i++)
			{
				char c = 0;
				for (int j = 0; j < n; j++)
				{
					c <<= bit; c += array[i * n + j];
				}
				buffer.append(c + "");
			}
			char c = 0;
			for (int j = 0; j < (array.length % n); j++)
			{
				c <<= bit; c += array[(array.length / n) * n + j];
			}
			buffer.append(c + "");
		}
		return buffer.toString();
	}

	public static void debug(String s)
	{if (DEBUG_ON) {System.out.println(s);}}
	public static void debug(String s0, double l0)
	{if (DEBUG_ON) {System.out.println(s0+" = "+l0);}}
	public static void debug(String s0, double l0, String s1, double l1)
	{if (DEBUG_ON) {System.out.println(s0+" = "+l0+"; "+s1+" = "+l1);}}
	public static void debug(String s0, double l0, String s1, double l1, String s2, double l2)
	{if (DEBUG_ON) {	System.out.println(s0+" = "+l0+"; "+s1+" = "+l1+"; "+s2+" = "+l2);}}
	public static void debug(String s0, double l0, String s1, double l1, String s2, double l2, String s3, double l3)
	{if (DEBUG_ON) {System.out.println(s0+" = "+l0+"; "+s1+" = "+l1+"; "+s2+" = "+l2+"; "+s3+" = "+l3);}}
	public static void debug(String s0, double l0, String s1, double l1, String s2, double l2, String s3, double l3, String s4, double l4)
	{if (DEBUG_ON) {System.out.println(s0+" = "+l0+"; "+s1+" = "+l1+"; "+s2+" = "+l2+"; "+s3+" = "+l3+"; "+s4+" = "+l4);}}

	public static void debug(boolean[] array) {if (DEBUG_ON) {debug(array, " ");}}
	public static void debug(boolean[] array, String separator)
	{
		if (DEBUG_ON)
		{
			StringBuffer buffer = new StringBuffer();
			for (int i = 0; i < array.length - 1; i++) {buffer.append((array[i] == true ? "1" : "0") + separator);}
			buffer.append((array[array.length - 1] == true) ? "1" : "0");
			System.out.println(buffer.toString());
		}
	}
	public static void debug(boolean[][] array) {if (DEBUG_ON) {debug(array, " ");}}
	public static void debug(boolean[][] array, String separator)
	{if (DEBUG_ON) {for (int i = 0; i < array.length; i++) {debug(array[i], separator);}}}

	public static void debug(char[] array) {if (DEBUG_ON) {debug(array, " ");}}
	public static void debug(char[] array, String separator)
	{
		if (DEBUG_ON)
		{
			StringBuffer buffer = new StringBuffer();
			for (int i = 0; i < array.length - 1; i++) {buffer.append(array[i] + separator);}
			buffer.append(array[array.length - 1]);
			System.out.println(buffer.toString());
		}
	}
	public static void debug(char[][] array) {if (DEBUG_ON) {debug(array, " ");}}
	public static void debug(char[][] array, String separator)
	{if (DEBUG_ON) {for (int i = 0; i < array.length; i++) {debug(array[i], separator);}}}

	public static void debug(int[] array) {if (DEBUG_ON) {debug(array, " ");}}
	public static void debug(int[] array, String separator)
	{
		if (DEBUG_ON)
		{
			StringBuffer buffer = new StringBuffer();
			for (int i = 0; i < array.length - 1; i++) {buffer.append(array[i] + separator);}
			buffer.append(array[array.length - 1]);
			System.out.println(buffer.toString());
		}
	}
	public static void debug(int[][] array) {if (DEBUG_ON) {debug(array, " ");}}
	public static void debug(int[][] array, String separator)
	{if (DEBUG_ON) {for (int i = 0; i < array.length; i++) {debug(array[i], separator);}}}
}
