n = int(input())
a = list(map(int, input().split()))

mn = 10 ** 6
mx = 0
for i, ei in enumerate(a):
    for j, ej in enumerate(a):
        if i == j:
            continue

        d = abs(ei - ej)

        mn = min(mn, d)
        mx = max(mx, d)

print(mn)
print(mx)