HDU 1753

import java.util.*;import java.math.*;public class Main {    public static void main(String[] args) {        Scanner cin = new Scanner(System.in);        while(cin.hasNext()){            BigDecimal a1 = new BigDecimal("0");            BigDecimal a2 = new BigDecimal("0");            a1 = cin.nextBigDecimal();            a2 = cin.nextBigDecimal();            System.out.println(a1.add(a2).stripTrailingZeros().toPlainString());        }    }}