#include <iostream> 
using namespace std;

int main() 
{ 
    int n,sum=0,a=0;
    cin>>n;
    for(int i=1;i<=n;i=i+2)sum=sum+i;
    for(int i=2;i<=n;i=i+2)a=a+i;
    cout<<a<<" "<<sum;
    return 0; 
}