$(25$p$)4.$ A transportation company transports products from three factories to five

warehouses. Supply, demanded quantities, and the transportation costs $($in

thousands of TL$)$ per truckload for different routes are shown in the matrix given

below.

Due to technical limitations$,$ it is impossible to transport products from Factory $2$

to Warehouse $4.$ Determine an initial basic feasible solution for the transportation

problem using the Northwest Corner Rule.