text: 
  import sys
  
  
  n = int(input().strip())
  arr = [int(arr_temp) for arr_temp in input().strip().split(' ')]
  
  positive = len([pos for pos in arr if pos > 0])/len(arr)
  negative = len([neg for neg in arr if neg < 0])/len(arr)
  zeros = len([zero for zero in arr if zero == 0])/len(arr)
  print ("{0:.6f}".format(positive))
  print ("{0:.6f}".format(negative))
  print ("{0:.6f}".format(zeros))