#include <iostream>
using namespace std;
int main()
{
	int n,x = 0,y = 0; 
    cin >> n;
    for (int i = 1; i <= n; i += 2)
    {
        x += i;
    }
    for (int i = 2; i <= n; i += 2)
    {
        y += i;
    }
    cout << x << " " << y;
	return 0;
}

#include <bits/stdc++.h>
using namespace std;
int n,a,b;//a代表奇数和，b代表偶数和
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)//遍历1~n
    {
        if(i%2==1)//如果是奇数
            a+=i;//a加上i
        if(i%2==0)//如果是偶数
            b+=i;//b加上i
    }
    cout<<a<<" "<<b;//输出a和b
    return 0;
}

#include<bits/stdc++.h> using namespace std; int main() { int n,sumj=0,sumo=0; cin>>n; for(int i=1;i<=n;i++) { if(i%2==0)sumo+=i; else sumj+=i;

}
cout<<sumj<<' '<<sumo;
return 0;

}