s = 0
k = [0,0]
n = gets.chomp
n.chars.each_with_index do |c, i|
  c = c.to_i
  s += c
  k[i%2] += c
end
t = ""
t << "Fizz" if s % 3 == 0
t << "Buzz" if (k[0] - k[1]) % 5 == 0
puts (t == "" ? n : t)