s = gets.chomp
n = s.reverse
d = 0
n.length().times {|i|
  d += 4 ** i * n[i].to_i
}

if d % 15 == 0
  puts "FizzBuzz"
elsif d % 5 == 0
  puts "Buzz"
elsif d % 3 == 0
  puts "Fizz"
else
  puts n
end