import strutils, sequtils

proc fzbz(x: int): auto =
  var bf = ""
  if x mod 3 == 0:
    bf.add "Fizz"
  if x mod 5 == 0:
    bf.add "Buzz"
  if bf == "":
    bf.add x
  result = bf.len

let a = stdin.readLine.split.map parseInt

var ans = 0
for a in a: ans.inc a.fzbz
echo ans