using parallel cursor

Hi Experts,

In my program using nested loop. I want avoid that using parallel cursor. But In two nested loops, using

I done, but where has three nested loops how ? plz tell me or send code?

Ex: my Requirment is like this

Loop at i_tab1 into wa_tab1.

loop at s_tab into wa_tab2.

end loop.

loop at k_tab into wa_tab3

end loop.

end loop.

plz send code using parallel cursor, if u get more points.

thanx

srinu