Display values from 3 tables into summary table

HI ,

I   need  answer for below requirement, please help me to sort out the issue.

I  have 3 tables

TABLE A

cid dstatus

1  Y

TABLE  B

cid dstatus

1Y

2Y

4Y

TABLE C

cid   dstaus

1Y

2Y

3N

4Y

5N

I have to  insert the above  details in to summary table like

TABLE SUMMARY

CID  ADSTATUS  BDSTATUS  CDSTATUS

1y yy

2 (NULL) Y Y

3 (NULL) (NULL) N

4  (NULL) Y Y    

5  (NULL)  (NULL)  N

please anybody  have solution  kindly share, Advance thanks for your help.

Regards 

Challa