n = int(input())
a = []
a = list(map(int, input().split()))
for i in range(n-1):
    tmp = int(a[i+1])-int(a[i])
    if i==0:
        min=tmp
    if min > tmp:
        min = tmp
print(min)
print(int(a[n-1])-int(a[0]))