#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,x=0,y=0,i;
    cin>>i;
	for(n=1;n<=i;n+=2){
		x=x+n;
	}
	cout<<x<<" ";
	for(n=0;n<=i;n+=2){
		y=y+n;
	}
	cout<<y<<" ";
}
/**************************************************************
	Problem: 1091
	User: zengyixuan
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/