Find the Optimal order, and its cost, tor evaluating the product 

A1, x A2 x A3 x A4

 where 

A1, is (5X2), 

A2, is (2x3), 

A3 is (3x4),

A4 is (4X6) 

Show the values of M (used for optimization) and p (used for storing the path) matrices, produced by the algorithm