#!/usr/bin/python3

def biggest_odd(x,y,z):
	odds=[n for n in [x,y,z] if n%2!=0]

	if not odds:
		return None

	return max(odds)


def main():
	x=int(input("Dwse akeraio x: "))
	y=int(input("Dwse akeraio y: "))
	z=int(input("Dwse akeraio z: "))

	result=biggest_odd(x,y,z)

	if result is not None:
		print(f"O megistos perittos arithmos einai o: {result}")
	else:
		print(f"Kanenas apo tous arithmous {x}, {y}, {z} den einai perittos")
if __name__=="__main__":
	main()