#F. 蜗牛爬树

    Type: FileIO (woniu) 1000ms 256MiB

蜗牛爬树

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说明

有一棵葡萄树高nn分米,一只蜗牛从底部向上爬,每分钟爬33分米,但每爬一分钟后都要休息一分钟,休息期间又要滑下11分米。该蜗牛需要多少分钟才能爬到树顶?

输入格式

输入一个整数n(0n1000 \le n \le 100

输出格式

输出一个整数,表示蜗牛需要多少分钟才能爬到树顶。

样例

17
15

test

Not Claimed
Status
Done
Problem
6
Open Since
2024-7-30 0:00
Deadline
2024-8-7 23:59
Extension
24 hour(s)