package jp.funnything.competition.util;

import java.math.BigInteger;

/**
 * Utility for BigInteger
 */
public class BI {
    public static BigInteger ZERO = BigInteger.ZERO;
    public static BigInteger ONE = BigInteger.ONE;

    public static BigInteger add( final BigInteger x , final BigInteger y ) {
        return x.add( y );
    }

    public static BigInteger add( final BigInteger x , final long y ) {
        return add( x , v( y ) );
    }

    public static BigInteger add( final long x , final BigInteger y ) {
        return add( v( x ) , y );
    }

    public static int cmp( final BigInteger x , final BigInteger y ) {
        return x.compareTo( y );
    }

    public static int cmp( final BigInteger x , final long y ) {
        return cmp( x , v( y ) );
    }

    public static int cmp( final long x , final BigInteger y ) {
        return cmp( v( x ) , y );
    }

    public static BigInteger div( final BigInteger x , final BigInteger y ) {
        return x.divide( y );
    }

    public static BigInteger div( final BigInteger x , final long y ) {
        return div( x , v( y ) );
    }

    public static BigInteger div( final long x , final BigInteger y ) {
        return div( v( x ) , y );
    }

    public static BigInteger mod( final BigInteger x , final BigInteger y ) {
        return x.mod( y );
    }

    public static BigInteger mod( final BigInteger x , final long y ) {
        return mod( x , v( y ) );
    }

    public static BigInteger mod( final long x , final BigInteger y ) {
        return mod( v( x ) , y );
    }

    public static BigInteger mul( final BigInteger x , final BigInteger y ) {
        return x.multiply( y );
    }

    public static BigInteger mul( final BigInteger x , final long y ) {
        return mul( x , v( y ) );
    }

    public static BigInteger mul( final long x , final BigInteger y ) {
        return mul( v( x ) , y );
    }

    public static BigInteger sub( final BigInteger x , final BigInteger y ) {
        return x.subtract( y );
    }

    public static BigInteger sub( final BigInteger x , final long y ) {
        return sub( x , v( y ) );
    }

    public static BigInteger sub( final long x , final BigInteger y ) {
        return sub( v( x ) , y );
    }

    public static BigInteger v( final long value ) {
        return BigInteger.valueOf( value );
    }
}

package core;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.ArrayList;
import java.util.List;

public class ExtendedBufferedReader extends BufferedReader {

	public ExtendedBufferedReader(Reader iReader) {
		super(iReader);
	}

	public String getLine(){
		
		try {
			return readLine();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}
	
	// Get int from line
	public int getIntFL(){
		try {
			return new Integer(readLine()).intValue();
		} catch (NumberFormatException e) {
			// TODO Auto-generated catch block
			System.out.println("Error check entry data");
		} catch (IOException e) {
			System.out.println("Error check entry data");
			e.printStackTrace();
		}
		return 0;
	}
	
	public List<Integer> getIntListFL(){
		
		String[] aRead;
		try {
			aRead = readLine().split(" ");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			return null;
		}
		List<Integer> aList = new ArrayList<Integer>();
		for (String num:aRead) {
			aList.add(new Integer(num));
		}
		return aList;
		
	}
	
	public List<Long> getLongListFL(){
		
		String[] aRead;
		try {
			aRead = readLine().split(" ");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			return null;
		}
		List<Long> aList = new ArrayList<Long>();
		for (String num:aRead) {
			aList.add(new Long(num));
		}
		return aList;
		
	}
	
	
}
