n = gets.to_i
a = gets.split.map(&:to_i)
min = Float::INFINITY
max = -Float::INFINITY
(0...n).each do |i|
    (0...n).each do |j|
        next if i == j
        min = [min, (a[i] - a[j]).abs].min
        max = [max, (a[i] - a[j]).abs].max
    end
end
puts min, max