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 bsevero.codejam.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;


public class IOUtils {
	
	public static List<String> readFile(String fileName) {
		try {
			File file = new File(fileName);
			FileReader fileReader = new FileReader(file);
			BufferedReader bufferedReader = new BufferedReader(fileReader);
			
			List<String> fileLines = new ArrayList<String>();
			for(String line = bufferedReader.readLine(); line != null; line = bufferedReader.readLine()) {
				fileLines.add(line);
			}

			return fileLines;
		} catch(Exception e) {
			e.printStackTrace();
			return Collections.emptyList();
		}
	}
	
	public static void writeFile(String fileName, Map<Integer, String> casesResult) {
		try {
			File file = new File(fileName);
			if(file.exists()) {
				file.delete();
			}
			file.createNewFile();
			FileWriter fileWriter = new FileWriter(file);
			PrintWriter printWriter = new PrintWriter(fileWriter);

			
			StringBuffer result = new StringBuffer();
			
			for(int i = 1; i <= casesResult.size(); i++) {
				result.append("Case #" + i + ": " + casesResult.get(i) + "\n");
			}
			printWriter.print(result.toString().substring(0, result.length() - 1));
			
			printWriter.close();
			fileWriter.close();
		} catch(Exception e) {
			e.printStackTrace();
		}
	}

	
}
