#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: wangyiyang
	Language: C++
	Result: Accepted
	Time:47 ms
	Memory:2072 kb
****************************************************************/