#include<iostream> using namespace std; int main () { int number; cin>>number; if(number%2==1) cout<<"红"; if(number%2==2) cout<<"红"; if(number%2==3) cout<<"红"; if(number%2==4) cout<<"黄"; if(number%2==5) cout<<"黄"; if(number%2==6) cout<<"白"; return 0; }