Unloading containers by order - optimisation

Hello I have a matrix that represents the loading bay of a cargo ship. It contains for example 15 containers (numbered 1 to 15) and I have to remove all of those containers, beginning from 1 to 15. A container can only be removed if there is no container above him, containers can be stacked by pile not exceding 5.

For example :

A = [0 0 0 0 0

0 0 0 0 0

9 15 4 14 2

13 1 7 5 10

8 6 12 3 11]

I have to have a historiv of all the moves or example : Ct 15 From stack 2 to 4 ; (then 1 is removed) (then 2 is removed) Ct 4 from stack 4 to 1 ...

Can anyone help ?