#include<string> 
#include<iostream>
using namespace std;
int main()
{   
	int a,b,x;

	cin >>a>>b;

    x = (a*b) % 2;

	if { 
		x != 0
	  
			cout <<"odd" <<endl;

	}else  {
			cout <<"even"<<endl;

	
}

	
	return 0;
}
