#include <stack>
#include <iostream>
#include <stdio.h>
#include <string>
#include <math.h>
using namespace std;
int main()
{

	int think1=0;
	int think2=0;
	int a;
	int b;


	stack<int> keep;
	string in1;
	cin>>in1;
	a=in1.length();

	stack<int> keep2;
	string in2;
	cin>>in2;
	b=in2.length();

	stack<int> show;


	int run1=0;
	while(in1[run1]!=NULL)
	{
	keep.push(in1[run1]-48);
		run1=run1+1;
	}

	int run2=0;
	while(in2[run2]!=NULL)
	{
	keep2.push(in2[run2]-48);
		run2=run2+1;
	}
	while(true)
	{

		if(!keep.empty())
		{
			think1=keep.top();
			keep.pop();
		}
		if(!keep2.empty())
		{
			think2=keep2.top();
			keep.pop();
		}
		if(think1+think2>=10)
		{
			if(keep.empty())
			{
			show.push(think1+think2);
			break;
			}
			else if(a>b)
			{
				show.push((think1+think2)%10);
				int use=keep.top()+1;
				keep.pop();
				keep.push(use);
			}
			else
			{
				show.push((think1+think2)%10);
				int use=keep2.top()+1;
				keep2.pop();
				keep2.push(use);
			}
		}
		else if(think1+think2<10)
		{
			show.push(think1+think2);
		}
	}
	cout<<"as";
	while(!show.empty())
	{
		cout<<show.top();
		show.pop();
	}
}