mod3 = [0, 1, 2, 0]
mod5 = [[0, 1, 2, 3], [0, 4, 3, 2]]
N = raw_input()
cnt3 = 0
cnt5 = 0
for i in range(0, len(N)):
	cnt3 += mod3[int(N[-1-i])]
	cnt5 += mod5[i%2][int(N[-1-i])]
ans = ''
if cnt3%3 == 0: ans = ans + 'Fizz'
if cnt5%5 == 0: ans = ans + 'Buzz'
if ans != '': print ans
else: print N