第一次用Java交题爽到不行！
//Accepted 1753 125MS 3336K 439 B
import java.math.BigDecimal;
import java.util.*;
public class Main {
public static void main(String[] args) {
BigDecimal a, b, c;
Scanner cin = new Scanner(System.in);
while(cin.hasNext()){
a = cin.nextBigDecimal();
b = cin.nextBigDecimal();
c = a.add(b);
if(c.compareTo(BigDecimal.ZERO)== 0)
System.out.println("0");
else
System.out.println(c.stripTrailingZeros().toPlainString());
}
}
}