文件目录

#include <iostream>
using namespace std;
int main()
{
    int n;
    cin >> n;
    if (n % 2 == 0)
        cout << (2 + n) * (n / 2) / 2 << " " << (1 + n - 1) * (n / 2) / 2;
    else
        cout << (2 + n - 1) * (n / 2) / 2 << " " << (1 + n) * (n / 2 + 1) / 2;
    return 0;
}
int ans1()
{
    int n;
    cin >> n;
    int j = 0, o = 0;
    for (int i = 1; i <= n; i++)
        if (i % 2)
            j += i;
        else
            o += i;
    cout << o << " " << j;
    return 0;
}