$(10\%)$ Specify the read and write rights in the following access control matrix for a system that consists of $4$ subjects and $4$ objects to be enforced by the Bell$-$LaPadula model. If no right is allowed, specify $"-"$ in the entry. Specify the read and write rights in the following access control matrix for a system that consists of $3$ subjects and $3$ objects to be enforced by the Biba model. If no right is allowed, specify $"-"$ in the entry.