F2p Melee training.

Hi
Im training my f2p main and these are my melee stats:

Att: 60

Str: 80

Def: 60

I need some advice on the best training order from here.

Train Str to 99 while leaving Attack at 60, and only start training Attack to 99 once Strength is maxed?

Or get base 80 (or any other number you suggest), and only after that I train Strength to 99?

Thanks in advance!