#include <stdio.h>
int main(void)
{
    int number;
    scanf("%d",&number);
    if (number%3==0 && number%5==0){
        printf("FIZZBUZZ");
    }
    else if(number%5==0){
        printf("BUZZ");
    }
    else if(number%3==0){
        printf("FIZZ");
    }
    else{
        printf("%d",number);
    }
}