import argparse


def fib(n):
	a,b, =0,1
	for i in range(n):
		a, b = b, a+b
	return a

def Main():
	parser = argparse.ArgumentParser()
	parser.add_argument("num", help="The fibonacci number you wish to calculate.", type =int)
	parser.add_argument("-o", "--output", help="Output resultto a file.",\)

	args = parser.parse_args()
	
	result = fib(args.num)
	print("The "+str(args.num)+"the fib number is "+str(result))

if __name__ == '__main__':
	Main()