#!/usr/bin/env ruby

def apply_gravity(moons)
  (0...moons.count).to_a.combination(2).each do |a, b|
    3.times do |i|
      case moons[a][0][i] <=> moons[b][0][i]
      when -1
        moons[a][1][i] += 1
        moons[b][1][i] -= 1
      when 1
        moons[b][1][i] += 1
        moons[a][1][i] -= 1
      end
    end
  end
  moons
end

def update(moons)
  moons.map do |moon|
    [moon[0].zip(moon[1]).map(&:sum), moon[1]]
  end
end

def calculate_energy(moons)
  moons.map { |moon|
    moon[0].map(&:abs).sum * moon[1].map(&:abs).sum
  }.sum
end

input = $stdin.readlines.map(&:strip)

moons = input.map do |line|
  m = line.scan(/-?\d+/)
  [[m[0].to_i, m[1].to_i, m[2].to_i], [0, 0, 0]]
end

1000.times do
  moons = apply_gravity(moons)
  moons = update(moons)
end

puts calculate_energy(moons)