A, B = map(int, input().split())

limit = max(A, B)
sieve = [True] * limit

for i in range(2, int(limit ** 0.5)):
    if not sieve[i]: 
        continue
    for j in range(2, limit // i):
        sieve[i * j] = False

for i in range(2, int(limit ** 0.5)):
    if not sieve[i]: 
        continue;
    a = 0
    b = 0
    while A % sieve[i] == 0:
        A /= i
        a += 1
    while B % i == 0 and b <= a:
        B /= i
        b += 1
    if min(a, b) % 2 == 1:
        print("Even")
        exit()
print("Odd")