Carefully examine the RISC$-$V datapath provided in Q$-17.$ Assume the

initial values are: $PC=600h,x1=222h,x2=444h,x3=666h,$ and $x4=$

$999$ h $.$ For the following instructions executed sequentially, determine

the hexadecimal values of $A,B,C,D,$ and E $.$ If the value is irrelevant,

indicate it as X $($don$\text{'}$t care$).$