Q=int(input())
for _ in range(Q):
  N,M=map(int,input().split())
  A=list(map(int,input().split()))
  B=list(map(int,input().split()))
  C=list(map(int,input().split()))
  D=list(map(int,input().split()))
  Ga=[[] for i in range(N+M+1)]
  Gb=[[] for i in range(N+M+1)]
  result=-1
  for i in range(N):
    x=C[i]
    Ga[x].append(i)
  for i in range(M):
    x=D[i]
    Gb[x].append(i)
  va=[0]*(N+1)
  vb=[0]*(M+1)
  for i in range(N):
    va[i]=va[i-1]+A[i]
  for i in range(M):
    vb[i]=vb[i-1]+B[i]
  for x in range(1,N+M+1):
    if len(Ga[x])*len(Gb[x])==0:
      continue
    d=-1
    for pos in Ga[x]:
      if pos<N//2:
        d=max(d,pos)
    if d>=0:
      s=va[2*d]
      score=0
      for pos in Gb[x]:
        l,r=pos-d,pos+d
        if 0<=l<M and 0<=r<M:
          ans=vb[r]-vb[l-1]
          score=max(score,ans)
      result=max(result,score+s)
    d=-1
    for pos in Ga[x]:
      if pos>=N//2:
        d=max(d,N-1-pos)
    s=va[N-1]-va[N-1-(2*d+1)]
    score=0
    if d>=0:
      for pos in Gb[x]:
        l,r=pos-d,pos+d
        if 0<=l<M and 0<=r<M:
          ans=vb[r]-vb[l-1]
          score=max(score,ans)
      result=max(result,score+s)
  A,B=B,A
  C,D=D,C
  N,M=M,N
  Ga=[[] for i in range(N+M+1)]
  Gb=[[] for i in range(N+M+1)]
  for i in range(N):
    x=C[i]
    Ga[x].append(i)
  for i in range(M):
    x=D[i]
    Gb[x].append(i)
  va=[0]*(N+1)
  vb=[0]*(M+1)
  for i in range(N):
    va[i]=va[i-1]+A[i]
  for i in range(M):
    vb[i]=vb[i-1]+B[i]
  for x in range(1,N+M+1):
    if len(Ga[x])*len(Gb[x])==0:
      continue
    d=-1
    for pos in Ga[x]:
      if pos<N//2:
        d=max(d,pos)
    s=va[2*d]
    score=0
    if d>=0:
      for pos in Gb[x]:
        l,r=pos-d,pos+d
        if 0<=l<M and 0<=r<M:
          ans=vb[r]-vb[l-1]
          score=max(score,ans)
      result=max(result,score+s)
    d=-1
    for pos in Ga[x]:
      if pos>=N//2:
        d=max(d,N-1-pos)
    s=va[N-1]-va[N-1-(2*d+1)]
    score=0
    if d>=0:
      for pos in Gb[x]:
        l,r=pos-d,pos+d
        if 0<=l<M and 0<=r<M:
          ans=vb[r]-vb[l-1]
          score=max(score,ans)
      result=max(result,score+s)
  print(result)