import java.math.BigInteger;

public class AngkaTakTerbatas {
    public static void main(String[] args) {
        BigInteger sangatBesar = new BigInteger("9223372036854775808"); // Long.MAX_VALUE + 1
        BigInteger dua = sangatBesar.multiply(BigInteger.TWO);
        System.out.println("nilai  : " + sangatBesar);
        System.out.println("kali 2 : " + dua);
    }
}