import sequtils,algorithm,math,strutils
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 puts(str: untyped){.header: "<stdio.h>", varargs.}
proc printf(formatstr: cstring){.header: "<stdio.h>", varargs.}
proc scan(): int =
  while true:
    let k = getchar_unlocked()
    if k < '0': break
    result = 10 * result + k.ord - '0'.ord
proc printFloat(f:float) =
  if f < 1e-8: printf("0.0\n")
  else:
    # echo f
    printf("%f\n", f)

var T : array[6,float]

scan().times:
  discard getchar_unlocked()
  var tMin = 500.0
  for i in 0..<6:
    var x,y:float
    scanf("%lf %lf\n",addr x,addr y)
    tMin .min= arctan2(x,y) / PI * 180.0
  tMin = -(tMin + 30.0) mod 59.9999999999
  printFloat(tMin)