if((int(input()))%15):
print("NO")
else:
print("YES")

不用谢我
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main()
{
int a;
cin>>a;
if(a%5==0&&a%3==0)
{cout<<"YES"<<endl;
}
else {cout<<"NO"<<endl;
}
getchar();
getchar();
return 0;
}