#include <bits/stdc++.h> using namespace std; int a1,a2,a3,a4; int b1,b2,b3; int ans1 = 114514,ans2 = 114514; int main () { freopen("a.in","r",stdin); freopen("a.out","w",stdout); cin >> a1;ans1 = min(ans1,a1); cin >> a2;ans1 = min(ans1,a2); cin >> a3;ans1 = min(ans1,a3); cin >> a4;ans1 = min(ans1,a4); cin >> b1;ans2 = min(b1,ans2); cin >> b2;ans2 = min(b2,ans2); cin >> b3;ans2 = min(b3,ans2); cout << ans1 + ans2 << endl; return 0; }