N = int(input())
a = list(map(int,input().split()))
a.sort()
min_num = max(a)-min(a)
for i in range(N-1):
    if min_num >= a[i+1] - a[i]:
        min_num = a[i+1] - a[i]
print(min_num)
print(max(a)-min(a))