Поправлен 11

Signed-off-by: Theliraan <theliraan@gmail.com>
Исправлен 18

Signed-off-by: Theliraan <theliraan@gmail.com>
Merge branch 'master' of github.com:Theliraan/Final-exams-answers
Merge branch 'master' of github.com:Theliraan/Final-exams-answers