C :

#include<stdio.h>

int main()
{
	int a;
	scanf("%d",&a);
	if(a%5==0&&a%3==0){
		printf("yes");
	}else{
		printf("no");
	}
	return 0;
}

C++ :

#include <iostream>
#include <cstdio>
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;
}

Python :

# coding=utf-8
a=int(input())
if a%3==0 and a%5==0:
    print('yes')
else:
    print('no')