N = int(input())
AB = [list(map(int, input().split())) for _ in range(2)]
XY = [list(map(int, input().split())) for _ in range(2)]
ans = 0
for i in range(N):
    tmp1 = 0
    for j in range(2):
        for k in range(2):
            tmp = AB[j][2 * i]
            tmp += AB[k][2 * i + 1]
            tmp += XY[abs(j - k)][i]
            tmp1 = max(tmp1, tmp)
    ans += tmp1
print(ans)