HDU 1753 简单大数

import java.util.*;
import java.math.*;
import java.io.*;

public class Hdu1715{
   public static void main(String args[]){
    String s1;
    BigDecimal a,b;
    Scanner cin = new Scanner(System.in);
    
    while(cin.hasNext()){
     
     a = cin.nextBigDecimal();
     b = cin.nextBigDecimal();
     a = a.add(b);
     s1 = a.stripTrailingZeros().toPlainString(); 
     System.out.println(s1);
    } 
    
    
   }
   
}