msub-12.native

[EGrouped [ESub (EIdentifier "P") (ENumber "0"),ESymbol Op "=",EUnderover (EGrouped [ESub (EIdentifier "P") (ENumber "0")]) (EUnary "\\phantom" (EGrouped [EIdentifier "x"])) (EUnary "\\phantom" (EGrouped [EIdentifier "x"]))]]