IUPAC name of the following structure is

H3C8-CH2-CH2-C5HCH3-C4HC2H5-CH2-CH2-C1H3 ;Locant rule cannot be applied. Both locants are at equivalent positions.Thus, alphabetical order is followed for numbering also ;Ethyl > Methyl ;IUPAC name :4 - ethyl - 5- methyloctane ;