hdu 3787 A+B

import java.util.*;
import java.math.BigInteger;
public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner In=new Scanner(System.in);
		String s1,s2;
		while(In.hasNext()){//多组输入
			s1=In.next();
			s2=In.next();
			s1=s1.replaceAll(",", "");//删除“，”
			
			s2=s2.replaceAll(",", "");
			BigInteger b1=BigInteger.valueOf(Integer.parseInt(s1));//把字符串转化为数字
			BigInteger b2=BigInteger.valueOf(Integer.parseInt(s2));
			b1=b1.add(b2);//大数相加
			System.out.println(b1.toString());
		}

	}

}