num = int(input())
if (num%2)== 0:
      print("Even")
elif(num%2)==1:
      print('Odd')
else(n<0):
	print('Invalid')
	

9f1281a9f82db02a090e79ccaccbe00b1e129e2d
num = int(input())
if (num%2)== 0:
      print("Even")
elif(num%2)==1:
      print('Odd')
else(n<0):
	print('Invalid')
	
