$($a$).$ Consider an initial state of a stack as follows: $($Each slot is $8$bytes, indicated by $"[8$B$]")$

high

$|...[8$Brsp

$|[=?]|$

$|[=??]|$

low

What will the stack look like after running these four instructions:

movq $$36,\%$ rax

pushq $\%$ rax

movq $$99,\%$ rax

pushq $\%$rax

Draw the stack state like above with $\%$rsp and contents in each slot

$($what are in $"[=?]"$ and $"[=??]").$