#include<bits/stdc++.h>
using namespace std;
 int main(void) {
   int a,b,c,d;
   cin >> a >>b;
   c=a%2;
   d=b%2;
   if (c==1 && d==1){
     cout >> "Odd" >> endl;
   }
   else {
     cout >> "Even" >> endl;
   }
 }