N = int(input())
a = [int(i) for i in input().split()]
max = a[len(a) - 1] - a[0]
min = 0
for i in range(1, len(a)):
    for j in range(i):
        if min > (a[i] - a[j]):
            min = a[i] - a[j]
print(max)
print(min)