n = int(input())
line = list(map(int,input().split()))
line.sort()
m = max(line) - min(line)
max_num = m

for i in range(n-1):
    min_num = line[i+1] - line[i]
    if min_num <= m:
        m = min_num
        
print(min_num)
print(max_num)