$1.(10$ marks$)$ Use CRAFT to solve the following problem $($assume all departments are $3-$unit

by $3-$unit squares$)$:

From$-$to $123456789$

$103001200500100$

$2020090050100400500$

$306003007001500$

$40400500$

$503001000$

$60900$

$70300800$

$80$

$90$

Please assume a square building $(9-$unit by $9-$unit squares$).$ Start with a sequential layout

and use rectilinear distance.