int[] create_ufind(int len)
{
  var arr = new int[len];
  for(var i = 0; i < len; i = i + 1;)
  {
    arr[i] = i;
  }
  return arr;
  
}

void union(int[] comps, int u, int v)
{
  var cU = find(comps, u);
  var cV = find(comps, v);

  if(cU == cV)
  {
    return;
  }

  comps[cU] = cV;
  return;
}

int find(int[] comps, int u)
{
  var root = u;
  while(root != comps[root])
  {
    root = comps[root];
  }

  while(u != root)
  {
    var parent = comps[u];
    comps[u] = root;
    u = parent;

  }

  return root;

}

int program (int argc, string[] argv) {
  var uf = create_ufind(8);
  union(uf, 0, 7);
  union(uf, 1, 6);
  union(uf, 2, 5);
  union(uf, 5, 0);
  
  for(var i = 0; i < 8; i = i + 1;){
    print_int(find(uf, i));
    print_string(" ");
  }
  return 0;
}