import java.util.*;
import java.lang.*;
 
class Ideone {
  public static void main (String[] args) throws java.lang.Exception {
    Random rand = new Random();
 
    int MAX = 10;
    boolean pos[] = new boolean[MAX+1];
    boolean neg[] = new boolean[MAX+1];
 
    int a[] = new int[rand.nextInt(10) + 6];
 
    for (var q=0; q<a.length; ++q) {
      var x = 1 + rand.nextInt(MAX - (q >> 1));
      var used = (q & 1) == 0 ? pos : neg;
 
      for (var w=0; w<=x; ++w) {
        if (used[w]) {
          ++x;
        }
      }
 
      used[x] = true;
      a[q] = (q & 1) == 0 ? x : -x;
    }
 
    System.out.println(Arrays.toString(a));
  }
}

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