C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n%3==0&&n%5!=0)cout<<"Yes"<<endl;
	else cout<<"No"<<endl;
	return 0;
}

Java :

import java.util.Scanner;
public class Main
{   
	public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
		if(a%3==0 && a%5==0) {
			System.out.println("No");
		}else if(a%3==0){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
    }
}

Python :

n = int(input())
if n % 3 == 0 and n % 5 != 0:
    print('Yes')
else:
    print('No')