about video
1 - he changes item 1 with 2
2 - he changes item 2 with 1
3 - ( maybe he frozen or unfreeze any adress in ce )
4 - he change item 1 with 2
5 - ( maybe he frozen or unfreeze any adress in ce )
6 - he change item 2 with 1
7 - fin ?
i need help about 3 and 5