#include<bits/stdc++.h>
using namespace std;

int main(){
	long long a,b,i,c = 0;
	cin>>a>>b;
	if(a<b) swap(a,b);
	cout<<(a+b-1)-((a-b)+1)+1<<endl;
}

/**************************************************************
	Problem: 1525
	User: admin
	Language: C++
	Result: Accepted
	Time:50 ms
	Memory:2072 kb
****************************************************************/