# yukicoder: No.3029 素因数
# 2019.6.18 bal4u
#
# Prime Factors Decomposition
# https://www.dcode.fr/prime-factors-decomposition 
#
# 26180411287263107299803976957264203054160842086839438580
# = 2^2 × 5 × 7369130657357778596659 × 177635683940025046467781066894531

p = 177635683940025046467781066894531
M = int(input())
print("odd" if (p % M) % 2 == 1 else "even")