proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" .}
proc printf(formatstr: cstring){.header: "<stdio.h>", varargs.}

proc printFloat(a,b:int) =
  if a mod b == 0: printf("%d\n",a div b)
  else:
    let f = a / b
    printf("%.5f\n",f)

var S : array[100002,char]
var left = 0
var l = 0
while true:
  l += 1
  let c = getchar_unlocked()
  S[l] = c
  if c == 'o' : left += 1
  elif c != 'x': break
left *= 100
for i in 1..<l:
  printFloat(left,l-i)
  if S[i] == 'o' : left -= 100