Revert "proba3"

This reverts commit be0a4bbaf32ebeb4272920124e3d15d7f7da71ad.
Revert "proba"

This reverts commit 5395f69f7d570e80de733d1a26f30ccff38d4a7b.
Revert "ok"

This reverts commit 63799c039c7d4d09f20e082f8f5ae5620960a105.
Revert "nesho"

This reverts commit 923e809d5728c8019d2bf8646089925deba0171b.