Are the children (three males and one female) and the grandfather (father's father) entitled to inherit from the deceased father's estate, which consists of a four-story house?

If the heirs are limited to the father and the children, the inheritance is divided as follows: the father receives one-sixth, and the remainder goes to the children, with the male receiving the share of two females. The brother does not inherit due to the presence of the father and the children. Accordingly, the house is divided into 42 parts: 7 for the grandfather, 5 for the son, and 10 for each daughter.