#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<60){ cout<<"NO"; }else{ cout<<"YES"; }**/ int a; cin>>a; if(a>30){ cout<<"hot" } else{ cout<<"cold" } return 0; }