N=input()

L=list(str(N))

T=0
for i in range(len(L)):
    T+=int(L[i])
    
F=0
for i in range(len(L)):
    if i%2==0:
        F-=int(L[len(L)-1-i])
    else:
        F+=int(L[len(L)-1-i])

if T%3==0 and F%5==0:
    print("FizzBuzz")
elif T%3==0:
    print("Fizz")
elif F%5==0:
    print("Buzz")
else:
    print(N)