#include<bits/stdc++.h> using namespace std; int main(){ int n,s1=0,s2=0; cin>>n; for(int i=1;i<=n;i++){ if(i%2==0) s1=s1+i; else s2=s2+i; } cout<<s2<<" "<<s1; } /************************************************************** Problem: 1091 User: fandaohan Language: C++ Result: Accepted Time:6 ms Memory:2072 kb ****************************************************************/