Codeforces Holidays

// Accepted
// reminder 6 er jonno minimum 1 hobe karon 5 din working day er por 6 number day off day, basically maximum 2 kore agabe,
// but except reminder 6. :)

#include<bits/stdc++.h>
using namespace std;

#define fast ios_base::sync_with_stdio(false)

typedef long long LL;

int main()
{
    fast;
    LL n;
    while(cin >> n)
    {
        LL qotient = n / 7;
        LL reminder = n % 7;
        LL mx=(qotient*2), mn=mx;

        if(reminder > 0)
        {
            if(reminder == 1)
            {
                mx+=1;
            }

            else
            {
                mx+=2;
            }


            if(reminder == 6)
            {
                mn+=1;
            }
        }

        cout << mn << " " << mx << "\n";
    }

    return 0;
}