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

A.sort()

ans_min = float("inf")
for i in range(N-1):
    temp = A[i+1] - A[i]
    ans_min = min(ans_min, temp)

ans_max = A[-1] - A[0]

print(ans_min)
print(ans_max)