import sequtils,math
template times*(n:int,body) = (for _ in 0..<n: body)
template `min=`*(x,y) = x = min(x,y)
proc scanf(formatstr: cstring){.header: "<stdio.h>", varargs.}
proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" .}
proc printf(formatstr: cstring){.header: "<stdio.h>", varargs.}
proc scan(): int =
  while true:
    let k = getchar_unlocked()
    if k < '0': return
    result = 10 * result + k.ord - '0'.ord
proc printFloat(f:float) =
  if f < 1e-8: printf("0.0\n")
  else: printf("%f\n", f)

scan().times:
  var x,y:float
  var xMin = 500.0
  var yMin : float
  for i in 0..<6:
    scanf("%lf %lf\n",addr x,addr y)
    if x < xMin :
      xMin = x
      yMin = y
  const toRad = 1.0 / PI * 180.0
  let tMin = -(arctan2(xMin,yMin) * toRad + 30.0) mod 59.9999999999
  printFloat(tMin)