Revert "Prog2 est encore mieu !"

This reverts commit d33cdd4d2311b5842ab5abe7fd3db7c0e72bfa87.
Revert "Revert "Prog2 est encore mieu !""

This reverts commit 97f3282f8ce34afe935bab9ac9997ed6543d2361.
Revert "Prog2 est encore mieu !"

This reverts commit d33cdd4d2311b5842ab5abe7fd3db7c0e72bfa87.
changement de prog1