Maxsubseq- obs

#include <fstream>
#include <iostream>
using namespace std;
int i,x,n;
int main()
{
  ifstream fi("max.in");
  ofstream fo("max.out");
  cin>>n;
  for(i=1;i<=n;i++)
  {
    if(i%2) x=-1; else x=1;
    x*=(((i-1)%3)+1);
    fo<<x<<" ";
  }
  return 0;
}