a=int(raw_input())
b=int(raw_input())
c=a-b
if(c%2==0):
 print("even no")
else:
 print("odd no")

cde7d87c864d76a7003ba05cd0b8e7c21f67ae7c
<mask token>

<mask token>
if c % 2 == 0:
    print('even no')
else:
    print('odd no')

a = int(raw_input())
b = int(raw_input())
c = a - b
if c % 2 == 0:
    print('even no')
else:
    print('odd no')

a=int(raw_input())
b=int(raw_input())
c=a-b
if(c%2==0):
 print("even no")
else:
 print("odd no")
