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