#include<bits/stdc++.h> using namespace std; int main(){ int n,h,x,m; cin >> n; m = n; if(n%2 == 1){ n = n-1; } x = (n-0)/2+1; h = (0+n)*x/2; cout << h << " "; h =0; x = 0; n = m; if(n%2 == 0){ n = n-1; } x = (n-1)/2+1; h = (1+n)*x/2; cout << h; return 0; }