package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

package fixjava;

import java.util.Iterator;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;

public class ParallelWorkQueue<I, O> implements Iterable<Future<O>> {

	public interface CallableFactory<I, O> {
		public Callable<O> newInstance(I input);
	}

	private ExecutorService threadPool;
	private LinkedBlockingQueue<Future<O>> workQueue;
	private Future<O> poisonPill = null;

	public ParallelWorkQueue(final int numThreads, final Iterable<I> inputs, final CallableFactory<I, O> callableFactory) {
		threadPool = Executors.newFixedThreadPool(numThreads);

		// Keep a max of (100x the number of threads) items in the work queue at a time 
		workQueue = new LinkedBlockingQueue<>(numThreads * 100);

		// Create work-producer thread
		new Thread() {
			public void run() {
				try {
					for (final I input : inputs)
						workQueue.put(threadPool.submit(callableFactory.newInstance(input)));

					// poisonPill was null until now, and null can never be put in the queue, so
					// the barrier can't be triggered. Now set poisonPill to another value that it
					// can only attain once, a NOP work unit.
					workQueue.put(poisonPill = threadPool.submit(new Callable<O>() {
						@Override
						public O call() throws Exception {
							return null;
						}
					}));

					// Shut down threads after last callable invoked
					threadPool.shutdown();

				} catch (InterruptedException e) {
					throw new RuntimeException(e);
				}
			};
		}.start();

	}

	@Override
	public Iterator<Future<O>> iterator() {
		return new Iterator<Future<O>>() {
			Future<O> next = null;
			boolean nextConsumed = true;

			@Override
			public boolean hasNext() {
				if (nextConsumed) {
					try {
						next = workQueue.take();
					} catch (InterruptedException e) {
						throw new RuntimeException(e);
					}
					nextConsumed = false;
				}
				// Check for poison pill
				if (next == poisonPill) {
					try {
						// Get result of poison pill Future so thread exits
						next.get();
					} catch (Exception e) {
						throw new RuntimeException(e);
					}
					return false; // at end
				} else {
					return true;
				}
			}

			@Override
			public Future<O> next() {
				if (nextConsumed)
					throw new RuntimeException("Can't call next() twice without calling hasNext()");
				nextConsumed = true;
				return next;
			}

			@Override
			public void remove() {
				throw new UnsupportedOperationException();
			}
		};
	}

	/**
	 * Return an Iterable<Integer> that iterates from 0 to n-1 inclusive. Can be
	 * passed into the "inputs" parameter of ParallelWorkQueue.
	 */
	public static Iterable<Integer> makeIntRangeIterable(final int n) {
		return new Iterable<Integer>() {
			private final int max = n;

			@Override
			public Iterator<Integer> iterator() {
				return new Iterator<Integer>() {
					int num = 0;

					@Override
					public boolean hasNext() {
						return num < max;
					}

					@Override
					public Integer next() {
						return num++;
					}

					@Override
					public void remove() {
						throw new UnsupportedOperationException();
					}
				};
			}
		};
	}
}

