[Faisal_khan]

Why are you using "GetPlayerSkin" many times?
Instead, use it one time:

pawn Код:

CMD:cuff(playerid, params[])
{
    if(GetPlayerSkin(playerid) == SKINID1 || SKINID2 || SKINID3)
    {
        //code of cuff
    }
    else
    {
        //return 0;
    }
    return 1;
}