#include<stdio.h>
#include<stdlib.h>

void run(void){
  const int n=2000000;
  char *s=(char *)malloc(sizeof(char)*(n+1));
  scanf("%s",s);

  int i=0;
  int d=1;
  int sum3=0;
  int sum5=0;
  while(s[i]!='\0'){
    int t=s[i]-'0';
    sum3+=t;
    sum5+=d*t;
    d*=-1;
    i++;
  }
  if(sum3%3==0 && sum5%5==0){
    printf("FizzBuzz\n");
  } else if(sum3%3==0){
    printf("Fizz\n");
  } else if(sum5%5==0){
    printf("Buzz\n");
  } else {
    printf("%s\n",s);
  }
  free(s);
  return;
}

int main(void){
  run();
  return 0;
}