Виконайте вправи за посиланням:
https://learningapps.org/watch?v=p3r3vok6n17
https://learningapps.org/watch?v=pb1i6ndej17
https://learningapps.org/watch?v=ptmgyvqz517
https://learningapps.org/watch?v=pc624i76k17
https://learningapps.org/watch?v=pg53j07wj17