дано натуральное число n. вычислить 1*2+2*3*4+..+2*3*4+..+n.

ПОМОГИТЕ ПОЖАЛУЙСТА!!!!

НАДО ПЕРЕВЕСТИ В КОСВЕННУЮ РЕЧЬ,ПОЖАЛУЙСТА

1. I said to Nick : " Where are you going ? "

2. " Go home , " said teacher to us .

3. " Don't be late for dinner , " said mother to Nick .

4. The teacher said to me : " Hand this note to your parents , please . "

5. Masha said : " I usually spend my holidays in the south . "

6. He said : " I am going to a rest - home tomorrow . "

7. She said to us : " They arrived in Moscow yesterday . "

8. " When I get a job , I'll buy a warm coat , " said the boy's father .

9. They said to him : " What time does the train start ? "

10. She asked me : " Why didn't you come here yesterday ? "

11. Boris said to them : " How can I get to the railway station ? "

12. " I shall buy some new stamps for you if you give me this one , " said Mike to Kate

13. He said : " I am sure she will come in time . "

14. She said to Tom : " You may come tomorrow a little later . "