n = int(input())
A = list(map(int, input().split()))
max_ = -1
min_ = 10**18
for i in range(n-1):
    for j in range(i+1, n):
        max_ = max(max_, abs(A[i]-A[j]))
        min_ = min(min_, abs(A[i]-A[j]))
print(min_)
print(max_)