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A10414. The Same Calendar

编程题 普及/提高-

题目描述

The girl Taylor has a beautiful calendar for the year $y$ . In the calendar all days are given with their days of week: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.

The calendar is so beautiful that she wants to know what is the next year after $y$ when the calendar will be exactly the same. Help Taylor to find that year.

Note that leap years has $366$ days. The year is leap if it is divisible by $400$ or it is divisible by $4$ , but not by $100$ ([https://en.wikipedia.org/wiki/Leap\_year](https://en.wikipedia.org/wiki/Leap_year)).

输入格式

The only line contains integer $y$ ( $1000<=y<100'000$ ) — the year of the calendar.

输出格式

Print the only integer $y'$ — the next year after $y$ when the calendar will be the same. Note that you should find the first year after $y$ with the same calendar.

输入输出样例

输入 #1
2016
输出 #1
2044
输入 #2
2000
输出 #2
2028
输入 #3
50501
输出 #3
50507

说明/提示

Today is Monday, the $13$ th of June, $2016$ .
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