def create_divisors(n):
  divisors=[]
  for i in range(1,int(n**0.5)+1):
    if n%i==0:
      divisors.append(i)
      if i!=n//i:
        divisors.append(n//i)
  # divisors.sort()
  return divisors

a,b=map(int,input().split())
div_a=create_divisors(a)
div_b=create_divisors(b)
from collections import Counter
c=Counter()
for da in div_a:
  c[da]+=1
for db in div_b:
  c[db]+=1
count=0
for k,v in c.items():
  if v==2:count+=1
if count%2==0:
  print("Even")
else:
  print("Odd")