Answer
Initial values $\qquad \ \ \ $ R = 20 $\qquad \ \ \ \ $ memory location 80 = 43
$\qquad \qquad \qquad \qquad \qquad \qquad \qquad $memory location 81 = 97
$\begin{array}{llll}
{\text {Memory}} & {\text {Final Contents} } & {\text {Final Contents} } & {\text {Final Contents} }\\
{\text {Operation }} & {\text {of Register R} } & {\text {of Mem Loc 80} } & {\text {of Mem Loc 81} }\\
{\text {} } & {\text {}} &{\text {} }& {\text {}} \\
{\text {} } & {\text {}} &{\text {Whatever value} }& {\text {}} \\
{\text {IN 80} } & {\text {117}} & { \text{is entered by} }& {\text {97 }} \\
{\text {} } & {\text {}} & { \text {the user} } & {\text {}} \\
\end{array}$
Work Step by Step
Initial values $\qquad \ \ \ $ R = 20 $\qquad \ \ \ \ $ memory location 80 = 43
$\qquad \qquad \qquad \qquad \qquad \qquad \qquad $memory location 81 = 97
$\begin{array}{llll}
{\text {Memory}} & {\text {Final Contents} } & {\text {Final Contents} } & {\text {Final Contents} }\\
{\text {Operation }} & {\text {of Register R} } & {\text {of Mem Loc 80} } & {\text {of Mem Loc 81} }\\
{\text {} } & {\text {}} &{\text {} }& {\text {}} \\
{\text {} } & {\text {}} &{\text {Whatever value} }& {\text {}} \\
{\text {IN 80} } & {\text {117}} & { \text{is entered by} }& {\text {97 }} \\
{\text {} } & {\text {}} & { \text {the user} } & {\text {}} \\
\end{array}$
