hdu1753

import java.math.*;
import java.util.*;
import java.io.*;
public class hdu1753 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc = new Scanner(new BufferedInputStream(System.in));
        BigDecimal a,b,ans;
        while(sc.hasNext())
        {
            a = sc.nextBigDecimal();
            b = sc.nextBigDecimal();
            ans = a.add(b).stripTrailingZeros();
            System.out.println(ans.toPlainString());
        }
    }

}