Revert "delete last line"

This reverts commit d855421bed4dfa0c8de8cd99c579ebb89841fb85.
section 1.5: commit second set
section 1.5 commit second set
Merge branch 'master' of file:///C:\Users\Mo\git\Lab2_Git
section 1.5: commit second set
section 1.5: commit second set
Merge branch 'master' of file:///C:\Users\Mo\git\Lab2_Git