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    impl=for_stmt< 'for' lst=exprlist<
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        a,b,c,d,e,f,*g,h,i = range(100) changes to
        _3to2list = list(range(100))
        a,b,c,d,e,f,g,h,i, = _3to2list[:6] + [_3to2list[6:-2]] +
_3to2list[-2:]

        and

        for a,b,*c,d,e in iter_of_iters: do_stuff changes to
        for _3to2iter in iter_of_iters:
            _3to2list = list(_3to2iter)
            a,b,c,d,e, = _3to2list[:2] + [_3to2list[2:-2]] + _3to2list[-2:]
            do_stuff
        u	_3to2listu	_3to2iteruexpluimpliui
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