Holidays

题面翻译

题目描述

在火星上，一年正好是n天(火星上没有闰年)。但是火星人和地球人有同样的周数——5个工作日，然后是2天的假期。你的任务是确定火星上每年的最小休假天数和最大休假天数。

输入格式:

输入的第一行包含一个正整数n(1<=n<=1000000)，即火星上一年的天数。

输出格式:

输出两个整数——火星上每年可休假的最小天数和最大天数。

样例解释

样例1：火星上一年14天，因此假期刚好只能是4天（两周有4天休息）。

样例2：火星上一年2天，可以是工作日，也可以是休息日。

题目描述

On the planet Mars a year lasts exactly $n$ days (there are no leap years on Mars). But Martians have the same weeks as earthlings — 5 work days and then 2 days off. Your task is to determine the minimum possible and the maximum possible number of days off per year on Mars.

输入格式

The first line of the input contains a positive integer $n$ ( $1<=n<=1000000$ ) — the number of days in a year on Mars.

输出格式

Print two integers — the minimum possible and the maximum possible number of days off per year on Mars.

样例 #1

样例输入 #1

14

样例输出 #1

4 4

样例 #2

样例输入 #2

2

样例输出 #2

0 2

提示

In the first sample there are $14$ days in a year on Mars, and therefore independently of the day a year starts with there will be exactly $4$ days off .

In the second sample there are only $2$ days in a year on Mars, and they can both be either work days or days off.