praca somowa
Revert "porzadki materiałów z lab 4"

This reverts commit f207c668afa2edb8e2561390db17bfe081f58f0f.
Revert "Revert "porzadki materiałów z lab 4""

This reverts commit 695f1da8f89ac7ec694531c2b3d5c225cba662c7.