#include <iostream>
using namespace std;
int main() {
    int n;
    cin >> n;
    for(int i = 1;i <= n;i++) {
        if(i % 3 == 0) {
            if(i % 5 == 0) {
                cout << "FizzBuzz";
            }else{
                cout << "Fizz";
            }
        }else if(i % 5 == 0) {
            cout << "Buzz";
        }else{
            cout << i;
        }
    }
}