var n,d,a,s,k,i: integer;
begin
readlnn,dn,dn,d;
s:=0; k:=0;
for i:=1 to n do
readlnaaa;
if a>d then begin s:=s+a; k:=k+1; end;
end;
writelns/ks/ks/k;
end.
var n,d,a,s,k,i: integer;
begin
readlnn,dn,dn,d;
s:=0; k:=0;
for i:=1 to n do
begin
readlnaaa;
if a>d then begin s:=s+a; k:=k+1; end;
end;
writelns/ks/ks/k;
end.