#笑えたのでこれが何秒で終わるのか試す

def 解():
	iN = int(input())
	aF = 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	for i in range(len(aF)):
		if iN <= aF[i]:
			if iN == aF[i]:
				print(i+1)
			else:
				print(i)
			exit()
	print(i+1)
解()


Measured memory_bytes: 23244