A,B=map(int,input().split())
from math import gcd
X=gcd(A,B)
flag=0

for i in range(2,10**6+1):
    while X%(i**2)==0:
        X//=i**2
    if X%i==0:
        flag=1

if flag:
    print("Even")
else:
    print("Odd")