N = int(eval(input()))

*h, = list(map(int, input().split()))

dp = [float("inf") for _ in range(N)]

dp[0] = 0

for i in range(N - 1):

	dp[i + 1] = min(dp[i + 1], dp[i] + abs(h[i + 1] - h[i]))

	if i < N - 2:

		dp[i + 2] = min(dp[i + 2], dp[i] + abs(h[i + 2] - h[i]))

print((dp[N - 1]))
N = int(eval(input()))

h = list(map(int, input().split()))

dp = [float("inf")]*N

dp[0] = 0

for i in range(N - 1):

	dp[i + 1] = min(dp[i + 1], dp[i] + abs(h[i + 1] - h[i]))

	if i < N - 2:

		dp[i + 2] = min(dp[i + 2], dp[i] + abs(h[i + 2] - h[i]))

print((dp[N - 1]))
N = int(eval(input()))
(*h,) = list(map(int, input().split()))
dp = [float("inf") for _ in range(N)]
dp[0] = 0
for i in range(N - 1):
    dp[i + 1] = min(dp[i + 1], dp[i] + abs(h[i + 1] - h[i]))
    if i < N - 2:
        dp[i + 2] = min(dp[i + 2], dp[i] + abs(h[i + 2] - h[i]))
print((dp[N - 1]))

N = int(eval(input()))
h = list(map(int, input().split()))
dp = [float("inf")] * N
dp[0] = 0
for i in range(N - 1):
    dp[i + 1] = min(dp[i + 1], dp[i] + abs(h[i + 1] - h[i]))
    if i < N - 2:
        dp[i + 2] = min(dp[i + 2], dp[i] + abs(h[i + 2] - h[i]))
print((dp[N - 1]))

-(*h,) = list(map(int, input().split())) -dp = [float("inf") for _ in range(N)] +h = list(map(int, input().split())) +dp = [float("inf")] * N