Revert "Trzeci model"

This reverts commit c9cc100327b5bd570d780efd49476feaff069b79.
Revert "Revert "Trzeci model""

This reverts commit c5f807e44a0313d0e1baed1190fd570cad6731e6.
Revert "Piaty model"

This reverts commit a59507f264e334f72a2596fd00c9364e99dc8f93.
Revert "Czwarty model"

This reverts commit eab1bd319a8d183aa4cca276b452732be3ac1595.
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