import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

n = ni()
a = na()
b = na()
x = na()
y = na()
ans = 0
for i in range(n):
    a1,a2 = a[i*2:i*2+2]
    b1,b2 = b[i*2:i*2+2]
    X = x[i]
    Y = y[i]
    ans += max(a1+a2+X,b1+b2+X,a1+b2+Y,b1+a2+Y)

print(ans)