UPDATE 1 — Zelenskiy asked neighbours to let grain cargoes through, Hungary PM Magyar says
(Adds details on Ukrainian production in paragraph 3, details of terms in paragraph 4, more comment by Magyar in paragraphs 5-9) BUDAPEST, Oct 17 (Reuters) — Ukrainian President Volodymyr Zelenskiy has asked neighbours Poland, Romania, Slovakia and Hungary to allow the transit of Ukrainian grain cargoes because of a Bl