package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}

package CJ2;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.StringTokenizer;

public class Recycle {
	
	static LinkedList<LinkedList<Integer>> db2 = new LinkedList<LinkedList<Integer>>();
public static void main(String [] args){
		
		BufferedReader br = null;
		String line="";
		if(args.length != 1){
			System.out.println("please input test file name as a command line argument");
			System.exit(0);
		}
		try{
			br = new BufferedReader(new FileReader(args[0]));
			line = br.readLine();
		} catch (IOException e) {
			e.printStackTrace();
		}
		int numOfTests = Integer.parseInt(line);
		BufferedWriter bw = null;
		try{
			FileWriter fw = new FileWriter("resultsM.txt");
			bw = new BufferedWriter(fw);
		}catch(IOException e){
			e.printStackTrace();
		}
		for(int i = 0; i < numOfTests ; i++){
			try{
				line = br.readLine();
				bw.write("Case #"+(i+1)+": ");
				bw.flush();
				bw.write(String.valueOf(checkPairs(line)));
				bw.flush();
				bw.newLine();
				bw.flush();
			}catch(IOException e){
				e.printStackTrace();
			}
		}
	}
	public static int checkPairs(String input){
		
		StringTokenizer tok = new StringTokenizer(input);
		int minRange = Integer.parseInt(tok.nextToken());
		int maxRange = Integer.parseInt(tok.nextToken());
		int digits=0;
		int tmp = minRange;
		while(tmp!=0){
			tmp/=10;
			digits+=1;
		}
		db2 = new LinkedList<LinkedList<Integer>>();
		int counter = 0;
		for(int i = minRange ; i <= maxRange ; i++){
			for(int j = 1; j < digits ; j++){
				tmp = rotate(i,j,digits);
				
				if(tmp <= maxRange && tmp >= minRange && tmp != i){
					if(checkExists2(i,tmp))
						counter++;
				}
			}
		}
		
		return counter;
	}
	public static int rotate(int toRotate, int times, int length){
		
		String rotation = String.valueOf(toRotate);
		for(int i=0;i<times;i++){
			
			rotation = rotation.charAt(length-1)+rotation.substring(0,length-1);
		}
		return Integer.parseInt(rotation);
	}
	
	public static boolean checkExists2(int base, int rotated){
		LinkedList<Integer> pair = new LinkedList<Integer>();
		if(base > rotated){
			pair.add(rotated);
			pair.add(base);
		}else{
			pair.add(base);
			pair.add(rotated);
		}
		if(db2.contains(pair)){
			return false;
		}else{
			db2.add(pair);
			return true;
		}
	}
	
	
}
