n = int(input())
a = list(map(int, input().split()))
max_a = 0
min_a = 10**10
for i in range(n):
    for j in range(i+1, n):
        max_a = max(max_a, abs(a[i] - a[j]))
        min_a = min(min_a, abs(a[i] - a[j]))
print(min_a)
print(max_a)