n = int(input())
a = [int(_) for _ in input().split()]

l3 = []
for i in a:
    l = a[:]
    b = l.pop(l.index(i))
    l2 = []
    for j in l:
        l2.append(abs(b-j))
    l3.append(l2)

l4 = [j for i in l3 for j in i]
print(min(l4))
print(max(l4))