program eeel;
var n,i,poz,max,max2:longint;
f,g:text;
    v,fr:array[1..10000000] of longint;
begin
assign(f,'elmaj.in'); reset(f);
assign(g,'elmaj.out'); rewrite(g);
readln(f,n);
max2:=0;
max:=0;
  for i:=1 to n do
    begin
       read(f,v[i]);
       fr[v[i]]:=fr[v[i]]+1;
       if v[i]>max then
         max:=v[i];
    end;
    for i:=1 to max do
      if fr[v[i]]>max2 then
        begin
        max2:=fr[v[i]];
        poz:=v[i];
        end;
        if max2<n div 2+1 then
          write(g,-1)
          else
    write(g,poz,' ',max2);
close(f);
close(g);
end.