import sys
input = sys.stdin.readline

N=int(input())
A=list(map(int,input().split()))
B=list(map(int,input().split()))

X=[(A[i]+B[i],A[i],B[i]) for i in range(len(A))]
X.sort()

C=0
D=0

for i in range(len(X)):
    if i%2==0:
        C+=X[i][1]
    else:
        D+=X[i][2]

print(C-D)