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 );
    }
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


class IOSystem {
	private String filePath;
	private List<String> inputList = new ArrayList<String>();
	private StringBuilder sb = new StringBuilder();
	private int readSize = 0;
	private int appendedSize = 0;
	public IOSystem(String filePath)
	{
		this(filePath," ");
	}
	public IOSystem(String filePath,String sep)
	{
		this.filePath = filePath;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filePath+".in"));
			String line = null;
			while((line=br.readLine())!=null)
			{
				inputList.addAll(Arrays.asList(line.split(sep)));
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	public int  size(){return inputList.size();}
	public boolean  hasNext(){return readSize < size();}
	public int  nextInt(){return Integer.parseInt(inputList.get(readSize++));}
	public long nextLong(){return Long.parseLong(inputList.get(readSize++));}
	public double nextDouble(){return Double.parseDouble(inputList.get(readSize++));}
	public String nextString(){return new String(inputList.get(readSize++));}
	public <T> void appendAnswer(T answer){sb.append("Case #"+(++appendedSize)+": "+answer.toString()+"\n");};
	public void output(){
		try {
			BufferedWriter bw = new BufferedWriter(new FileWriter(filePath+".ou"));
			bw.write(sb.toString());
			bw.flush();
			System.out.println(sb.toString());
			System.out.println("output ->"+filePath+".ou");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}
