return (Math.Max(Math.Min(pos_small, zerodis),Math.Min(pos_small, close)) * neg_medium_pow +
          Math.Max(Math.Min(zero, zerodis),  Math.Min(zero, close)) * zero_pow +
          Math.Max(Math.Max(Math.Min(neg_small, close), Math.Min(neg_big, medium)),Math.Min(zero, far)) * pos_medium_pow +
          Math.Max(Math.Min(neg_small, medium), Math.Min(neg_small, far)) * pos_high_pow);