#include<bits/stdc++.h> using namespace std; int main() { int s1 = 0; int s2 = 0; int m; cin >> m; for (int i = 1; i <= m; i++) { if (i % 2 == 0) { s1 = s1 + i; } else { s2 = s2 + i; } } cout << s2 << " " << s1; return 0; }