Hi Kenosis

I tanks you very much.

You are fantastic.

the output its right, as I want it, but now I have the numbering also in non duplicate ID

.... ID=Locus10035v1rpkm10.18.1

.... Parent=Locus10035v1rpkm10.18

.... ID=Locus10035v2rpkm2.50.1

.... Parent=Locus10035v2rpkm2.50

.... ID=Locus10073v1rpkm10.09.1

.... Parent=Locus10073v1rpkm10.09

.... ID=Locus10182v1rpkm9.88.1

.... Parent=Locus10182v1rpkm9.88

.... ID=Locus10210v1rpkm9.81.1

but I would like to have only on duplicate and the numbering start only from second and so on.