#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
	//ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	//freopen("quick.in","r",stdin);
	//freopen("quick.out","w",stdout);
	int a,b,c,d;
	cin>>a>>b>>c>>d;
	int x,y,z;
	cin>>x>>y>>z;
	int p=min(min(a,b),min(c,d))+min(min(x,y),z);
	cout<<p;
	return 0;
}