[navi tasan]

Which of these sentences is correct:

1-In order for people to notice him he shouted.
2-He shouted in order for people to notice him.
3-He shouted for people to notice him.

4-In order for you to be able to come in, I didn't lock the door.
5-I didn't lock the door in order for you to be able to come in.
6-I didn't lock the door for you to be able to come in.