670_A. Holidays
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.

Input

The first line of the input contains a positive integer n (1 ≤ n ≤ 1 000 000) — the number of days in a year on Mars.

Output

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

Examples

Input

14


Output

4 4


Input

2


Output

0 2

Note

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.
```python
n = int(input())

if n % 7 == 0:
    print(n // 7 * 2, n // 7 * 2)
else:
    x = (n // 7 + 1) * 7
    if x - n == 6:
        print((n // 7) * 2, (n // 7) * 2 + 1)
    else:
        if x - n == 1:
            print((n // 7) * 2 + 1, (n // 7) * 2 + 2)
        else:
            print((n // 7) * 2, (n // 7) * 2 + 2)

```