[MadeMan]

pawn Код:

new FemaleSkins[] = {
    9,10,11,12,13,31,38,39,40,41,53,54,55,56,63,64,69,75,76,77,85,87,88,89,90,91,92,93,129,130,131,138,139,140,141,145,148,150,151,
    152,157,169,172,178,190,191,192,193,194,195,196,197,198,199,201,205,207,211,214,215,216,218,219,224,225,226,231,232,233,237,238,
    243,244,245,246,251,256,257,263,298
};

pawn Код:

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    switch(dialogid)
    {
        case DIALOG_REGISTER:
        {
            if(response)
            {
                new rand = random(sizeof(MaleSkins));
                SetPlayerSkin(playerid, MaleSkins[rand]);
            }
            else
            {
                new rand = random(sizeof(FemaleSkins));
                SetPlayerSkin(playerid, FemaleSkins[rand]);
            }
        }
    }
    return 1;
}

You need to make the MaleSkins array too.