{My solution process by sorting the curve of point and geting the median
curve point ... thank}


const inp = '1207.in';
      maxn= 10005;
type  tdat = record xx,yy,id : longint; end;
var   fname              : text;
      dat                : array[1..maxn] of tdat;
      temp               : tdat;
      l,n,l2,min,m,mx,my,i : longint;
begin

     readln(n);
     min:=maxlongint;
     for l:=1 to n do
         begin
              readln(dat[l].xx,dat[l].yy);
              if dat[l].xx<min then
                 begin min:=dat[l].xx; m:=l; end;
              dat[l].id:=l;
         end;
     mx:=dat[m].xx; my:=dat[m].yy; i:=dat[m].id;
     for l:=1 to n-1 do
         for l2:=l+1 to n do
             if (my-dat[l2].yy)*(mx-dat[l].xx)
             >  (my-dat[l].yy) *(mx-dat[l2].xx) then
               begin
                    temp:=dat[l2];
                    dat[l2]:=dat[l];
                    dat[l]:=temp;
               end;
     for l:=1 to n do
         if (dat[l].xx=mx) and (dat[l].yy=my) then
            begin
                 if l>n div 2 then
                    writeln(i,' ',dat[n div 2].id)
                 else
                     writeln(i,' ',dat[(n div 2)+1].id);
                 halt;
            end;
end.