#include<iostream>
using namespace std;

string a,b;

void work()
{
	int t=0;
	for(int i=a.size()-1;i>=0;i--)
	{
		int x=a[i]-'0';
		int y=b[i]-'0';
		int res=x+y+t;
		t=res/10;
		res=res%10;
		a[i]='0'+res;
	}
	if(t==1)
	cout<<t;
	cout<<a<<endl;
}

int main()
{
	while(cin>>a>>b)
		work();
	return 0;
}