n = input()
ln = len(n)
a = 0
b = 0
c = 0
ans = ""

for i in range(0,ln):
    a += int(n[i])
    if i % 2 == 0:
        b += int(n[i])
    else:
        c += int(n[i])
    
if a % 3 == 0:
    ans += "Fizz"
if (b - c) % 11  == 0:
    ans += "Buzz"
if ans == "":
    ans = n
    
print(ans)