#include<bits/stdc++.h>
using namespace std;
long long t,f,n,m,a[100000],b[100000];
int main()
{
	cin>>n>>m;
	t=n,f=m;
	n=false;
	m=false;
	while (n<t)
	{
		n++;
		a[n]=n;
	}
	while (m<f)
	{
		m++;
		b[m]=m;
	}
	cout<<b[m]+a[n];
}