n = int(input())
a = list(map(int,input().split()))
b = list(map(int,input().split()))
x = list(map(int,input().split()))
y = list(map(int,input().split()))
ans = 0
for i in range(n):
    ans += max(a[2*i] + b[2*i+1] + y[i],b[2*i] + a[2*i+1] + y[i],a[2*i] + a[2*i+1] + x[i],b[2*i] + b[2*i+1] + x[i])
print(ans)