UVa 10106 - Product

传送门UVa 10106 - Product

高精度水题..

import java.io.*;
import java.util.*;
import java.math.*;
import java.text.*;
public class Main
{
public static void main(String[] args)
{
Scanner cin = new Scanner (new BufferedInputStream(System.in));
BigInteger a;
BigInteger b;
BigInteger sum;
while (cin.hasNext())
{
a = cin.nextBigInteger();
b = cin.nextBigInteger();
sum = a.multiply(b);
System.out.println(sum);
}

}
}