#N,M,K=map(int,input().split())\
# A=sorted(A,key=lambda x: x[1])
# A=sorted(A,key=lambda x: x[0])
N=int(input())
A=list(map(int, input().split()))
B=list(map(int, input().split()))
C=[]
for i in range(2*N):
  C.append((A[i]+B[i],A[i],B[i],i))
C=sorted(C)

ans=0
for i in range(2*N):
  p,q=C[i][1],C[i][2]
  if i%2==0:
    ans+=p
  else:
    ans-=q
print(ans)