ارسال شماره 682
n=int(input())
obstacle = list(map(int, input().split()))
shot = 0
print(obstacle)
for i in range(int(n/2)):
d = abs(obstacle[i] - obstacle[n-i-1])
shot += d
print(shot)
n=int(input())
obstacle = list(map(int, input().split()))
shot = 0
print(obstacle)
for i in range(int(n/2)):
d = abs(obstacle[i] - obstacle[n-i-1])
shot += d
print(shot)