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.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Scanner;


public class RecycledNums {
	public static String rootDir = System.getProperty("user.dir") + File.separator;
	public static String filesDir = rootDir + "files" + File.separator;
	private FileWriter fw;
	
	private int tests;
	private int[] a;
	private int[] b;
	private int[] pow10 = {1,10,100,1000,10000,100000,1000000,10000000};
	
	
	public static void main(String[] args) {
		RecycledNums r = new RecycledNums();
		r.go();
	}
	
	public RecycledNums() {
		try {
			Scanner input = new Scanner(new File(filesDir + "recycled.txt"));
			Scanner line;
			tests = Integer.parseInt(input.nextLine());
			a = new int[tests];
			b = new int[tests];			
			
			for (int c  = 0; c < tests; c++) {
				line = new Scanner(input.nextLine());
				
				a[c] = line.nextInt();
				b[c] = line.nextInt();
			}
			
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		
//		for (int i = 0; i < a.length; i++) {
//			System.out.println(a[i] + " " + b[i]);
//		}
	}
	
	public void go() {
		
		open();
		int[] r;
		int count;
		HashMap<Integer,Integer> h;
		for (int c = 0; c < tests; c++) {
			count = 0;
			h = new HashMap<Integer,Integer>();
			
			for (int n = a[c]; n <= b[c]; n++) {
				if (digits(n) < 2)
					continue;
				
				if (h.containsKey(n))
					continue;
				r = getRecycledNums(n);
				
				for (int i = 0; i < r.length; i++) {
					for (int j = i + 1; j < r.length; j++) {
						if (r[i] < a[c] || r[i] > b[c] || r[j] < a[c] || r[j] > b[c])
							continue;
						if (digits(r[i]) != digits(r[j]))
							continue;
						if (r[i] == r[j])
							continue;
						
						count++;
					}
				}
				add(r,h);
			}
			
			write("Case #" + (c+1) + ": " + count);
			if (c != tests-1)
				write("\n");
			System.out.println("Case #" + (c+1) + ": " + count);
		}
		close();
	}
	
	private void add(int[] r,HashMap<Integer,Integer> h) {
		for (int n : r)
			if (!h.containsKey(n))
				h.put(n, n);
	}
	
	private int digits(int n) {
		if (n == 0)
			return 0;
		return 1 + digits(n/10);
	}
	
	private int[] getRecycledNums(int n) {
		int[] digits = new int[digits(n)];
		int[] nums = new int[digits.length];
		int start;
		int num;
		
		for (int i = 0; i < digits.length; i++)
			digits[i] = (n/pow10[i])%10;
		
		for (int i = 0; i < digits.length; i++) {
			start = i;
			num = 0;
			
			for (int j = 0; j < digits.length; j++) {
				num += digits[start]*pow10[j];
				
				start = (start+1)%digits.length;
			}
			
			nums[i] = num;
		}
		return check(nums);
		
	}
	
	private int[] check(int[] n) {
		ArrayList<Integer> list = new ArrayList<Integer>();
		
		for (int i : n)
			if (!list.contains(i))
				list.add(i);
		
		return toIntArray(list);
	}
	
	private int[] toIntArray(ArrayList<Integer> list) {
		int[] temp = new int[list.size()];
		
		for (int i = 0; i < list.size(); i++)
			temp[i] = list.get(i).intValue();
		return temp;
	}
	private void open() {
		try {
			fw = new FileWriter(new File(filesDir + "recycledAns.txt"));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private void close() {
		try {
			fw.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private void write(String s) {
		try {
			fw.write(s);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
}
