s = io.read()
n = string.len(s)
a, b = 0, 0
for i = 1, n do
    c = tonumber(string.sub(s, i, i))
    a = a + c
    if(i % 2 == 0) then b = b + c else b = b - c end
end
a, b = a % 3, b % 5
if(a ~= 0 and b ~= 0) then
    print(s)
else
    if(a == 0) then io.write("Fizz") end
    if(b == 0) then io.write("Buzz") end
    io.write("\n")
end