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Create 2483.py

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	`1`	`+class Solution(object):`
	`2`	`+ def bestClosingTime(self, customers):`
	`3`	`+ n = len(customers)`
	`4`	`+ penalty = customers.count('Y')`
	`5`	`+ if penalty == n:`
	`6`	`+ return n`
	`7`	`+ min_, ans = n, 0`
	`8`	`+ for index, value in enumerate(customers):`
	`9`	`+ if min_ > penalty:`
	`10`	`+ min_ = penalty`
	`11`	`+ ans = index`
	`12`	`+ if value == 'Y':`
	`13`	`+ penalty -= 1`
	`14`	`+ else:`
	`15`	`+ penalty += 1`
	`16`	`+ if min_ > penalty: return n`
	`17`	`+ return ans`

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