import sys
input = sys.stdin.readline

N=int(input())
AB=[list(map(int,input().split())) for _ in range(2)]
C=list(map(int,input().split()))
D=list(map(int,input().split()))


ans=0

for i in range(N):
    smax=0
    for a in range(2):
        for b in range(2):
            s = AB[a][i*2]
            s+= AB[b][i*2+1]
            s+= C[i] if a==b else D[i]
            if smax<s:
                smax=s
    ans+=smax
print(ans)