Revert "Fixed class name"

This reverts commit e45590afe3d6a2148c1d7cd2beafca7582a1d557.
Revert "My homework "Post""

This reverts commit 6bb42a048e97f227222c6c25b0c2f8f6f85d113d.
Revert "My homework "1.3.LuckyNumber""

This reverts commit 117e7ae279770480dc0e2bbd6f49936e7f552d06.