The third Blue Bridge Cup Javac Group _ put wheat

/* (Start of program header comment)

* Copyright and version Declaration section of the program

* Copyright (c) 2016, Guangzhou Science and Technology Trade Vocational College, Department of Information Engineering students

* All rights reserved.

* File name: Blue Bridge Cup title

* Author: Pengjunhau

* Completion Date: April 01, 2016

* Version number: 001

* Description part of task and solution method

* Input Description: None

* Description of the problem:

You must have heard the story. The King admired the minister who invented chess and asked him what he wanted to pay,
The minister said, "Please put 1 grains of wheat in the 1th checkerboard, 2 grains of wheat in the 2nd checkerboard, and 4 tablets in the 3rd checkerboard."
Wheat, put 8 grains of wheat in the 4th checkerboard, ... The number in the last lattice is twice times the previous one, until all
Checkerboard (64 chess in total).

The King thought he just wanted a sack of wheat and laughed.

It was impossible to calculate accurately at that time, but the results were surprising: even the whole world was full of wheat!

Please calculate exactly how many grains of wheat you need by computer.

* Program output: None

* End of comment on the program head

*/

On the code:

Import Java.math.BigInteger;

public class Main {

public static void Main (string[] args) {
BigInteger B1 = new BigInteger ("1");
for (int i = 1; i <=; i++) {
B1 = B1.multiply (biginteger.valueof (2));
}
B1 = B1.subtract (Biginteger.one);
System.out.println (B1);
}

}

The third Blue Bridge Cup Javac Group _ wheat