using namespace std;
#include<bits/stdc++.h>
#define ll long long
#define sl "%lld"
#define sll "%lld\n"
#define sls "%lld "
#define pr pair<ll,ll>
#define fir first
#define sec second
#define mp make_pair
#define pb push_back
#define all(c) (c).begin(),(c).end()
#define sz(c) ((ll)c.size())
#define READ(f) freopen(f,"r",stdin)
#define WRITE(f) freopen(f,"w",stdout)
#define rep(c,it) for(__typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define __rep(c,it) for(__typeof((c).rbegin()) it=(c).rbegin();it!=(c).rend();it++)
#define ford(i,a,b) for(int i=a;i<=b;i++)
#define __ford(i,a,b) for(int i=a;i>=b;i--)

int main()
{
     ll n,m,ans=0;
     scanf(sl sl,&n,&m);
     printf(sl,m+n-2);
}