SQL & PL/SQL :: Display In Two Different Columns

Below is returning rows in single column.I need to display in two different columns

SELECT * FROM TABLE(PLUSER.SPLIT('a,b,c'))
union all
SELECT * FROM TABLE(PLUSER.SPLIT('1,2,3'))

this returning result like
a
b
c
1
2
3

but need abc in one column and 1,2 3 in one column
a 1
b 2
c 3

i was tried like

select * from TABLE(PLUSER.SPLIT('1,2,3')),(select * from TABLE(PLUSER.SPLIT('a,b,c')));

but it's giving cartesion result like below
1a
1b
1c
2a
2b
2c
3a
3b
3c