#include<stdio.h>
int main()
{
	char s[2000006];
	scanf("%s", s);
	int i, a, b;
	for (i = 0, a = 0; s[i] != '\0'; i++)
		a = (4 * a + s[i] - '0') % 3;
	for (i = 0, b = 0; s[i] != '\0'; i++)
		b = (4 * b + s[i] - '0') % 5;
	if (a == 0 && b == 0)
		printf("FizzBuzz\n");
	else if (a == 0)
		printf("Fizz\n");
	else if (b == 0)
		printf("Buzz\n");
	else
		printf("%s\n", s);
	return 0;
}