N=int(input())
lista=[]

a=input()
a=a.rstrip().split(" ")
for i in range(N):
    lista.append(int(a[i]))

min=10000000000
for j in range(1,N):
    if lista[j]-lista[j-1]<min:
        min=lista[j]-lista[j-1]

print(min)
print(lista[N-1]-lista[0])