include<stdio.h>
 
int main(void)
{
    int a, b;
    scanf("%d %d", &a, &b);
    if(a*b%2 == 1)
    {
        printf("Odd\n");
    }
    else if(a*b%2 == 0)
    {
        printf("Even\n");
    }
    return 0;
}