#include<bits/stdc++.h>
#define _rep(i,a,b) for(int i=(a);i<=(b);i++)
#define _antirep(i,a,b) for(int i=(a);i>=(b);i--)
using namespace std;
typedef long long lxl; 
string a,b,ans;
int x;
int main()
{ 
	cin>>a>>b;
	int len=max(a.size(),b.size()); 
	while(a.size()<len) a='0'+a;//补零
	while(b.size()<len) b='0'+b;//补零
	_antirep(i,len-1,0)
	{
		int c=a[i]-'0',d=b[i]-'0';
		ans=(char)((c+d+x)%10+'0')+ans;
		x=(c+d+x)/10;
	}
	if(x!=0) ans=(char)(x+'0')+ans;
	cout<<ans;
  return 0;
}