point_count = int(input())
points = input().split(' ')
points_t = [int(points[i]) for i in range(point_count)]
points_t.sort()
points_t.reverse()

min_num = 100000000
for idx, val in enumerate(points_t):
    if idx != point_count - 1:
        min_num = min((min_num, val - points_t[idx + 1]))

print(min_num)
print(points_t[0] - points_t[point_count - 1])