#include <stdio.h>
int main()
{
int n;
while(~scanf("%d",&n))
if (n%2==0)
printf("even\n");
else
printf("odd\n");
return 0;
}
#include <stdio.h>
int main()
{
int n;
while(~scanf("%d",&n))
if (n%2==0)
printf("even\n");
else
printf("odd\n");
return 0;
}