codeforces 670A Holidays

#include <bits/stdc++.h>

using namespace std;

void file()
{
freopen("C:\\Users\\MrZis\\Desktop\\input.txt", "r", stdin);
freopen("C:\\Users\\MrZis\\Desktop\\output.txt", "w", stdout);
return ;
}

int main()
{
int n;
scanf("%d", &n);
int res = 2 * (n / 7);
int tmp = n % 7;
//cout << tmp << endl;
if (tmp == 0)
{
printf("%d %d", res, res);
return 0;
}
else if (tmp == 1)
{
printf("%d %d\n", res, res + 1);
return 0;
}
else if (tmp == 2)
{
printf("%d %d\n", res, res + 2);
return 0;
}
else if (tmp == 3)
{
printf("%d %d\n", res, res + 2);
return 0;
}
else if (tmp == 4)
{
printf("%d %d\n", res, res + 2);
return 0;
}
else if (tmp == 5)
{
printf("%d %d\n", res, res + 2);
return 0;
}
else if (tmp == 6)
{
printf("%d %d\n", res + 1, res + 2);
return 0;
}
return 0;
}