#include<iostream> using namespace std; int main(){ int n,a=0; a+=1; cin>>n; for(int i=2;i<=n;i++){ if(i%2==0){ (1+n)*((n-1)/2)/2; }else{ ((1+n)*((n-1)/2)/2)-n; } } cout<<a<<" "<<b; return 0; }