x = input()
x4 = 0
for i in range(len(str(x))):
    x4 += int(x[i])*(4**(len(str(x))-i-1))

if x4 % 15 == 0:
    print ("FizzBuzz")
elif x4 % 3 == 0:
    print("Fizz")
elif x4 % 5 == 0:
    print ("Buzz")
else:
    print(x)