# -*- coding: utf-8 -*-

n = int(input())
a = list(map(int,input().split()))

maxlen = 0
minlen = 1000000

for i in range(n):
    for j in range(i+1,n):
        temp = abs(a[i] - a[j])
        maxlen = max(temp, maxlen)
        minlen = min(temp, minlen)

print(minlen)
print(maxlen)