find position originally in new array

[gigiolone123]

i want to find originally index position for a>0

example:

a=
0 1 3
4 0 1
1 2 0

a>0

i want this:

0 1 1
1 0 2
2 3 0

if element=0 i write 0..
if element is >0 i write position of originally array




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