HDU1002：A + B Problem II
大数整数和问题：


import java.util.Scanner;
import java.math.BigInteger;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		int count = 1;
		while (T != 0) {
			BigInteger a = in.nextBigInteger();
			BigInteger b = in.nextBigInteger();
			System.out.println("Case" + " " + (count++) + ":");
			System.out.println(a + " + " + b + " = " + a.add(b));
			if (T != 1) {
				System.out.println("");
			}
			T--;
		}
	}
}