#include<bits/stdc++.h>
#define yy return 0;
using namespace std;
int main(){
    int n;cin>>n;     
    if(n%2) cout<<"odd";
    else cout<<"even";
    yy
}

#include<bits/stdc++.h> using namespace std; int main() { int n; cin>>n; if(n%2==0) { cout<<"even"; } else { cout<<"odd"; } }