$LOAD\ B : ACC \leftarrow M[B]: ACC=B$
$MULT\ C: ACC \leftarrow ACC\times M[C]:ACC=BC$
$STORE\ T1 :M[T1] \leftarrow ACC: M[T1]=BC$
$ADD\ A : ACC \leftarrow ACC+M[A]: ACC=BC+A$
$STORE\ T2 :M[T2] \leftarrow ACC: M[T2]=BC+A$
$MULT\ T2: ACC \leftarrow ACC\times M[T2]:ACC=(BC+A)^2$
$ADD\ T1 : ACC \leftarrow ACC+M[T1]:ACC=(BC+A)^2+BC$
$STORE\ Z: M[Z] \leftarrow ACC:M[Z]=(BC+A)^2+BC$
$Z=(BC+A)^2+BC$