Lesson P0101, P0102

Signed-off-by: IMucaMI <Nechaev.Leha@Gmail.com>
Lesson P0111

Signed-off-by: IMucaMI <Nechaev.Leha@Gmail.com>
Lesson P0121

Signed-off-by: IMucaMI <Nechaev.Leha@Gmail.com>
Lesson P0131

Signed-off-by: IMucaMI <Nechaev.Leha@Gmail.com>