/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

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

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

package de.at.codejam.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * FIXME - redesign ... keep closing and loading file for each test case, but
 * question every method and variable here. Remember new class TaskStatus - does
 * it inspire?
 */
public abstract class AbstractInputFileParser<CASE> implements
		CodeJamConstants, InputFileParser<CASE> {

	private final File inputFile;

	private TaskStatus taskStatus;

	private int numberCases = UNDEFINED;

	public AbstractInputFileParser(File inputFile) {
		this.inputFile = inputFile;
	}

	@Override
	public void initialize(TaskStatus taskStatus) {

		this.taskStatus = taskStatus;

		countCases();

		taskStatus.setNumberCases(numberCases);
		taskStatus.setNumberCurrentCase(1);
	}

	@Override
	public TaskStatus getTaskStatus() {
		return taskStatus;
	}

	public int countCases() {

		FileReader fileReader;
		BufferedReader bufferedReader;

		try {

			fileReader = new FileReader(inputFile);
			bufferedReader = new BufferedReader(fileReader);

			numberCases = Integer.parseInt(bufferedReader.readLine().trim());

			bufferedReader.close();
			fileReader.close();

		} catch (FileNotFoundException e) {
			// FIXME Error logging
		} catch (IOException e) {
			// FIXME Error logging
		} finally {
		}

		return numberCases;
	}

	public int getNumberCases() {
		return numberCases;
	}

	public boolean hasNextCase() {
		return (null != taskStatus)
				&& (taskStatus.getNumberCases() > taskStatus
						.getNumberCurrentCase());
	}

	public BufferedReader checkoutBufferedReader() throws FileNotFoundException {

		FileReader fileReader = null;
		BufferedReader bufferedReader = null;

		fileReader = new FileReader(inputFile);
		bufferedReader = new BufferedReader(fileReader);

		return bufferedReader;
	}

	public void checkinBufferedReader(BufferedReader bufferedReader)
			throws IOException {

		// Does this call also close the FileReader instance?
		bufferedReader.close();
	}

	public List<String> readLines(BufferedReader bufferedReader,
			int numberOfLines) throws IOException {

		List<String> lineList = new ArrayList<String>();

		int linesRead = 0;
		while (numberOfLines > linesRead) {

			// Reading Line
			String currentLine = bufferedReader.readLine();
			if (null == currentLine) {
				throw new RuntimeException("Unexpected end of file.");
			}

			lineList.add(currentLine);
			linesRead++;
		}

		return lineList;
	}

	public List<String> readLines(BufferedReader bufferedReader, int firstLine,
			int numberOfLines) throws IOException {

		int nrCurrentLine = 1;
		while (firstLine > nrCurrentLine) {

			// Skipping line, probably not the sweetest way to do it ... by any
			// means.
			if (null == bufferedReader.readLine()) {
				throw new RuntimeException("Unexpected end of file.");
			}

			nrCurrentLine++;
		}

		return readLines(bufferedReader, numberOfLines);
	}
}
