n=int(input())
A=list(map(int,input().split()))
A.sort()
saisho=A[0]
saidai=A[0]
min_delta=10**20
for i in range(1,n):
    delta=A[i]-A[i-1]
    min_delta=min(min_delta, delta)
    saidai=max(A[i],saidai)
    saisho=min(saisho,A[i])
print(min_delta)
print(saidai-saisho)