def sum_integer(number_list):
	result = number_list[0] + number_list[1]
	if result == number_list[2]:
		return True
	else:
		return False

def main():
	input_txt = input()
	number_list = list(map(int,input_txt.split()))
	if sum_integer(number_list):
		print("Correct")
	else:
		print("Incorrect")

if __name__ == "__main__":
	main()