#include<bits/stdc++.h> using namespace std; int main(){ /** char a; cin>>a; if(a=='Y'){ cout<<'A'; }else{ if(a=='Z'){ cout<<'B'; }else{ cout<<char(a+2); }**/ int a; cin>>a; if(a%2 ==1){ cout<<"Yes"; }else{ cout<<"No"; } return 0; }