#include<iostream> using namespace std; int main(){ int a,sum=0; cin>>a; for(int i=1;i<=a;i+=2){ if(i%2!=0){ sum+=i; } } cout<<sum<<" "; sum=0; for(int i=0;i<=a;i+=2){ if(i%2==0){ sum+=i; } } cout<<sum; return 0; }