#include<bits/stdc++.h>
using namespace std;
vector< queue< stack< map<int,int> > > > a;
vector< queue< stack< map<int,int> > > > c;
void CIN(int x,vector< queue< stack< map<int,int> > > > &k){
map<int,int> x2;
x2[1]=x;
stack< map<int,int> > sk;
sk.push(x2);
queue< stack< map<int,int> > > q;
q.push(sk);
vector< queue< stack< map<int,int> > > > c;
c.push_back(q);
k=c;
}
int get(vector< queue< stack< map<int,int> > > > k){
map<int,int> x2;
stack< map<int,int> > sk;
queue< stack< map<int,int> > > q;
vector< queue< stack< map<int,int> > > > c;
c=k;
q=c[0];
sk=q.front();
x2=sk.top();
int sum=x2[1];
return sum;
}
int main(){
int x,y;
cin>>x>>y;
CIN(x,a);
CIN(y,c);
int ans=get(a)+get(c);
cout<<ans;
return 0;
}