public class Test {

  public static void main(String[] args) {
    Integer[] a = {8, 7, 6, 4, 3, 2, 1, 0};
    int x=9;
    int n = a.length;
    for (int i = 0; i < n; i++)
      for (int j=0; j<n; j++)
        if (a[i]+a[j]==x)
          System.out.println(a[i]+" "+a[j]);

  }
}