#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,i=1,s=0,z,j;
	cin>>n;
	do{
		s+=i;
		i+=2;
	}while(i<=n);
	cout<<s<<" ";
	i=2;
	s=0;
	do{
		s+=i;
		i+=2;
	}while(i<=n);
	cout<<s;
	return 0;
}

/**************************************************************
	Problem: 1091
	User: zzz
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/