How to insert the values into table in sqlserver

declare @noofrows int
declare @cnt int

set @noofrows=10
set @cnt=1

 while @cnt< @noofrows
   begin
           if (@cnt%2)= 0
             begin
                     insert into Production..USERAnswer values(@cnt,1,null)
             end
           else
              begin
                     insert into Production..USERAnswer values(@cnt,null,2)
              end 
              set @cnt=@cnt+1
   end

OutPut :

UID ANS1 ANS2
1   NULL   2
2    1     NULL
3   NULL  2
4    1    NULL
5  NULL   2
6   1    NULL
7  NULL  2
8  1    NULL
9 NULL  2

Thanks.