Gengyin Yiyou Wuyin Wuwu
The eight characters lack water, but avoid water and metal. The Five Elements does not mean that whatever is missing will make up for it, nor does it mean that everything that is missing will be auspicious. Thinking that whatever is missing in the five elements can be supplemented is an ignorant and misunderstanding of yin and yang and the five elements. Such an algorithm is too naive, and supplementing the wrong five elements will harm the baby.