gets
while gets
  x1, y1, x2, y2, x3, y3 = $_.split.map(&:to_f)
  a1 = 2 * (x2 - x1)
  b1 = 2 * (y2 - y1)
  c1 = x1*x1 - x2*x2 + y1*y1 - y2*y2
  a2 = 2 * (x3 - x1)
  b2 = 2 * (y3 - y1)
  c2 = x1*x1 - x3*x3 + y1*y1 - y3*y3
  ansx = (b1*c2 - b2*c1)/(a1*b2 - a2*b1)
  ansy = (c1*a2 - c2*a1)/(a1*b2 - a2*b1)
  ansr = Math.sqrt( (x1-ansx)*(x1-ansx) + (y1-ansy)*(y1-ansy) )
  puts sprintf("%.3f %.3f %.3f", ansx, ansy, ansr)
end
